From b731f3119de57144e16c19fd593b8daeb637843e Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:12 -0700 Subject: turbostat: Don't put unprocessed uapi headers in the include path turbostat's Makefile puts arch/x86/include/uapi/ in the include path, so that it can include from it. It isn't in general safe to include even uapi headers directly from the kernel tree without processing them through scripts/headers_install.sh, but asm/msr.h happens to work. However, that include path can break with some versions of system headers, by overriding some system headers with the unprocessed versions directly from the kernel source. For instance: In file included from /build/x86-generic/usr/include/bits/sigcontext.h:28:0, from /build/x86-generic/usr/include/signal.h:339, from /build/x86-generic/usr/include/sys/wait.h:31, from turbostat.c:27: ../../../../arch/x86/include/uapi/asm/sigcontext.h:4:28: fatal error: linux/compiler.h: No such file or directory This occurs because the system bits/sigcontext.h on that build system includes , and asm/sigcontext.h in the kernel source includes , which scripts/headers_install.sh would have filtered out. Since turbostat really only wants a single header, just include that one header rather than putting an entire directory of kernel headers on the include path. In the process, switch from msr.h to msr-index.h, since turbostat just wants the MSR numbers. Signed-off-by: Josh Triplett Cc: stable@vger.kernel.org Signed-off-by: Len Brown --- tools/power/x86/turbostat/Makefile | 2 +- tools/power/x86/turbostat/turbostat.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile index f09641d..d1b3a36 100644 --- a/tools/power/x86/turbostat/Makefile +++ b/tools/power/x86/turbostat/Makefile @@ -5,7 +5,7 @@ DESTDIR := turbostat : turbostat.c CFLAGS += -Wall -CFLAGS += -I../../../../arch/x86/include/uapi/ +CFLAGS += -DMSRHEADER='"../../../../arch/x86/include/uapi/asm/msr-index.h"' %: %.c @mkdir -p $(BUILD_OUTPUT) diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 9d77f13..93cbef5 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -20,7 +20,7 @@ */ #define _GNU_SOURCE -#include +#include MSRHEADER #include #include #include -- cgit v1.1 From 2e9c6bc7fb6ffc32d83bc133e4a7389125e8eb0a Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:13 -0700 Subject: turbostat: Don't attempt to printf an off_t with %zx turbostat uses the format %zx to print an off_t. However, %zx wants a size_t, not an off_t. On 32-bit targets, those refer to different types, potentially even with different sizes. Use %llx and a cast instead, since printf does not have a length modifier for off_t. Without this patch, when compiling for a 32-bit target: turbostat.c: In function 'get_msr': turbostat.c:231:3: warning: format '%zx' expects argument of type 'size_t', but argument 4 has type 'off_t' [-Wformat] Signed-off-by: Josh Triplett Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 93cbef5..dbcbf27 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -234,7 +234,7 @@ int get_msr(int cpu, off_t offset, unsigned long long *msr) close(fd); if (retval != sizeof *msr) { - fprintf(stderr, "%s offset 0x%zx read failed\n", pathname, offset); + fprintf(stderr, "%s offset 0x%llx read failed\n", pathname, (unsigned long long)offset); return -1; } -- cgit v1.1 From 2b92865e648ce04a39fda4f903784a5d01ecb0dc Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:14 -0700 Subject: turbostat: Use GCC's CPUID functions to support PIC MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit turbostat uses inline assembly to call cpuid. On 32-bit x86, on systems that have certain security features enabled by default that make -fPIC the default, this causes a build error: turbostat.c: In function ‘check_cpuid’: turbostat.c:1906:2: error: PIC register clobbered by ‘ebx’ in ‘asm’ asm("cpuid" : "=a" (fms), "=c" (ecx), "=d" (edx) : "a" (1) : "ebx"); ^ GCC provides a header cpuid.h, containing a __get_cpuid function that works with both PIC and non-PIC. (On PIC, it saves and restores ebx around the cpuid instruction.) Use that instead. Signed-off-by: Josh Triplett Cc: stable@vger.kernel.org Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index dbcbf27..51741a1 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -35,6 +35,7 @@ #include #include #include +#include char *proc_stat = "/proc/stat"; unsigned int interval_sec = 5; /* set with -i interval_sec */ @@ -1978,7 +1979,7 @@ void check_cpuid() eax = ebx = ecx = edx = 0; - asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0)); + __get_cpuid(0, &max_level, &ebx, &ecx, &edx); if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) genuine_intel = 1; @@ -1987,7 +1988,7 @@ void check_cpuid() fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ", (char *)&ebx, (char *)&edx, (char *)&ecx); - asm("cpuid" : "=a" (fms), "=c" (ecx), "=d" (edx) : "a" (1) : "ebx"); + __get_cpuid(1, &fms, &ebx, &ecx, &edx); family = (fms >> 8) & 0xf; model = (fms >> 4) & 0xf; stepping = fms & 0xf; @@ -2009,7 +2010,7 @@ void check_cpuid() * This check is valid for both Intel and AMD. */ ebx = ecx = edx = 0; - asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000000)); + __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx); if (max_level < 0x80000007) { fprintf(stderr, "CPUID: no invariant TSC (max_level 0x%x)\n", max_level); @@ -2020,7 +2021,7 @@ void check_cpuid() * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 * this check is valid for both Intel and AMD */ - asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007)); + __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx); has_invariant_tsc = edx & (1 << 8); if (!has_invariant_tsc) { @@ -2033,7 +2034,7 @@ void check_cpuid() * this check is valid for both Intel and AMD */ - asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6)); + __get_cpuid(0x6, &eax, &ebx, &ecx, &edx); has_aperf = ecx & (1 << 0); do_dts = eax & (1 << 0); do_ptm = eax & (1 << 6); -- cgit v1.1 From 74823419761c11830ea1819365f82cf3d48795cb Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:15 -0700 Subject: turbostat: Check return value of fscanf Some systems declare fscanf with the warn_unused_result attribute. On such systems, turbostat generates the following warnings: turbostat.c: In function 'get_core_id': turbostat.c:1203:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] turbostat.c: In function 'get_physical_package_id': turbostat.c:1186:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] turbostat.c: In function 'cpu_is_first_core_in_package': turbostat.c:1169:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] turbostat.c: In function 'cpu_is_first_sibling_in_core': turbostat.c:1148:8: warning: ignoring return value of 'fscanf', declared with attribute warn_unused_result [-Wunused-result] Fix these by checking the return value of those four calls to fscanf. Signed-off-by: Josh Triplett Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 51741a1..4f7b88b 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -1189,7 +1189,10 @@ int cpu_is_first_sibling_in_core(int cpu) perror(path); exit(1); } - fscanf(filep, "%d", &first_cpu); + if (fscanf(filep, "%d", &first_cpu) != 1) { + perror(path); + exit(1); + } fclose(filep); return (cpu == first_cpu); } @@ -1210,7 +1213,10 @@ int cpu_is_first_core_in_package(int cpu) perror(path); exit(1); } - fscanf(filep, "%d", &first_cpu); + if (fscanf(filep, "%d", &first_cpu) != 1) { + perror(path); + exit(1); + } fclose(filep); return (cpu == first_cpu); } @@ -1227,7 +1233,10 @@ int get_physical_package_id(int cpu) perror(path); exit(1); } - fscanf(filep, "%d", &pkg); + if (fscanf(filep, "%d", &pkg) != 1) { + perror(path); + exit(1); + } fclose(filep); return pkg; } @@ -1244,7 +1253,10 @@ int get_core_id(int cpu) perror(path); exit(1); } - fscanf(filep, "%d", &core); + if (fscanf(filep, "%d", &core) != 1) { + perror(path); + exit(1); + } fclose(filep); return core; } -- cgit v1.1 From 95aebc44e73b05d4e95774b983a63909de638808 Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:16 -0700 Subject: turbostat: Add a helper to parse a single int out of a file Many different chunks of code in turbostat open a file, parse a single int out of it, and close it. Factor that out into a common function. Signed-off-by: Josh Triplett Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 81 +++++++++++------------------------ 1 file changed, 24 insertions(+), 57 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 4f7b88b..f7b5d6f 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -21,6 +21,7 @@ #define _GNU_SOURCE #include MSRHEADER +#include #include #include #include @@ -1174,27 +1175,38 @@ void free_all_buffers(void) } /* - * cpu_is_first_sibling_in_core(cpu) - * return 1 if given CPU is 1st HT sibling in the core + * Parse a file containing a single int. */ -int cpu_is_first_sibling_in_core(int cpu) +int parse_int_file(const char *fmt, ...) { - char path[64]; + va_list args; + char path[PATH_MAX]; FILE *filep; - int first_cpu; + int value; - sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); + va_start(args, fmt); + vsnprintf(path, sizeof(path), fmt, args); + va_end(args); filep = fopen(path, "r"); - if (filep == NULL) { + if (!filep) { perror(path); exit(1); } - if (fscanf(filep, "%d", &first_cpu) != 1) { + if (fscanf(filep, "%d", &value) != 1) { perror(path); exit(1); } fclose(filep); - return (cpu == first_cpu); + return value; +} + +/* + * cpu_is_first_sibling_in_core(cpu) + * return 1 if given CPU is 1st HT sibling in the core + */ +int cpu_is_first_sibling_in_core(int cpu) +{ + return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); } /* @@ -1203,62 +1215,17 @@ int cpu_is_first_sibling_in_core(int cpu) */ int cpu_is_first_core_in_package(int cpu) { - char path[64]; - FILE *filep; - int first_cpu; - - sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); - filep = fopen(path, "r"); - if (filep == NULL) { - perror(path); - exit(1); - } - if (fscanf(filep, "%d", &first_cpu) != 1) { - perror(path); - exit(1); - } - fclose(filep); - return (cpu == first_cpu); + return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); } int get_physical_package_id(int cpu) { - char path[80]; - FILE *filep; - int pkg; - - sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); - filep = fopen(path, "r"); - if (filep == NULL) { - perror(path); - exit(1); - } - if (fscanf(filep, "%d", &pkg) != 1) { - perror(path); - exit(1); - } - fclose(filep); - return pkg; + return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); } int get_core_id(int cpu) { - char path[80]; - FILE *filep; - int core; - - sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); - filep = fopen(path, "r"); - if (filep == NULL) { - perror(path); - exit(1); - } - if (fscanf(filep, "%d", &core) != 1) { - perror(path); - exit(1); - } - fclose(filep); - return core; + return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); } int get_num_ht_siblings(int cpu) -- cgit v1.1 From 57a42a34d126f2fe5d1f2f120c5f7a31ec65cd31 Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:17 -0700 Subject: turbostat: Factor out common function to open file and exit on failure Several different functions in turbostat contain the same pattern of opening a file and exiting on failure. Factor out a common fopen_or_die function for that. Signed-off-by: Josh Triplett Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 31 ++++++++++++++++--------------- 1 file changed, 16 insertions(+), 15 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index f7b5d6f..de634c8 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -1175,6 +1175,19 @@ void free_all_buffers(void) } /* + * Open a file, and exit on failure + */ +FILE *fopen_or_die(const char *path, const char *mode) +{ + FILE *filep = fopen(path, "r"); + if (!filep) { + perror(path); + exit(1); + } + return filep; +} + +/* * Parse a file containing a single int. */ int parse_int_file(const char *fmt, ...) @@ -1187,11 +1200,7 @@ int parse_int_file(const char *fmt, ...) va_start(args, fmt); vsnprintf(path, sizeof(path), fmt, args); va_end(args); - filep = fopen(path, "r"); - if (!filep) { - perror(path); - exit(1); - } + filep = fopen_or_die(path, "r"); if (fscanf(filep, "%d", &value) != 1) { perror(path); exit(1); @@ -1237,11 +1246,7 @@ int get_num_ht_siblings(int cpu) char character; sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); - filep = fopen(path, "r"); - if (filep == NULL) { - perror(path); - exit(1); - } + filep = fopen_or_die(path, "r"); /* * file format: * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) @@ -1311,11 +1316,7 @@ int for_all_proc_cpus(int (func)(int)) int cpu_num; int retval; - fp = fopen(proc_stat, "r"); - if (fp == NULL) { - perror(proc_stat); - exit(1); - } + fp = fopen_or_die(proc_stat, "r"); retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); if (retval != 0) { -- cgit v1.1 From b2c95d90a799c9885661d431034b7ca733cc2660 Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:18 -0700 Subject: turbostat: Clean up error handling; disambiguate error messages; use err and errx Most of turbostat's error handling consists of printing an error (often including an errno) and exiting. Since perror doesn't support a format string, those error messages are often ambiguous, such as just showing a file path, which doesn't uniquely identify which call failed. turbostat already uses _GNU_SOURCE, so switch to the err and errx functions from err.h, which take a format string. Signed-off-by: Josh Triplett Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 107 ++++++++++++---------------------- 1 file changed, 38 insertions(+), 69 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index de634c8..c8cce5d 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -23,6 +23,7 @@ #include MSRHEADER #include #include +#include #include #include #include @@ -624,12 +625,10 @@ delta_thread(struct thread_data *new, struct thread_data *old, old->tsc = new->tsc - old->tsc; /* check for TSC < 1 Mcycles over interval */ - if (old->tsc < (1000 * 1000)) { - fprintf(stderr, "Insanely slow TSC rate, TSC stops in idle?\n"); - fprintf(stderr, "You can disable all c-states by booting with \"idle=poll\"\n"); - fprintf(stderr, "or just the deep ones with \"processor.max_cstate=1\"\n"); - exit(-3); - } + if (old->tsc < (1000 * 1000)) + errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n" + "You can disable all c-states by booting with \"idle=poll\"\n" + "or just the deep ones with \"processor.max_cstate=1\""); old->c1 = new->c1 - old->c1; @@ -1180,10 +1179,8 @@ void free_all_buffers(void) FILE *fopen_or_die(const char *path, const char *mode) { FILE *filep = fopen(path, "r"); - if (!filep) { - perror(path); - exit(1); - } + if (!filep) + err(1, "%s: open failed", path); return filep; } @@ -1201,10 +1198,8 @@ int parse_int_file(const char *fmt, ...) vsnprintf(path, sizeof(path), fmt, args); va_end(args); filep = fopen_or_die(path, "r"); - if (fscanf(filep, "%d", &value) != 1) { - perror(path); - exit(1); - } + if (fscanf(filep, "%d", &value) != 1) + err(1, "%s: failed to parse number from file", path); fclose(filep); return value; } @@ -1319,10 +1314,8 @@ int for_all_proc_cpus(int (func)(int)) fp = fopen_or_die(proc_stat, "r"); retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); - if (retval != 0) { - perror("/proc/stat format"); - exit(1); - } + if (retval != 0) + err(1, "%s: failed to parse format", proc_stat); while (1) { retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); @@ -1426,19 +1419,15 @@ void check_dev_msr() { struct stat sb; - if (stat("/dev/cpu/0/msr", &sb)) { - fprintf(stderr, "no /dev/cpu/0/msr\n"); - fprintf(stderr, "Try \"# modprobe msr\"\n"); - exit(-5); - } + if (stat("/dev/cpu/0/msr", &sb)) + err(-5, "no /dev/cpu/0/msr\n" + "Try \"# modprobe msr\""); } void check_super_user() { - if (getuid() != 0) { - fprintf(stderr, "must be root\n"); - exit(-6); - } + if (getuid() != 0) + errx(-6, "must be root"); } int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) @@ -1979,10 +1968,8 @@ void check_cpuid() fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", max_level, family, model, stepping, family, model, stepping); - if (!(edx & (1 << 5))) { - fprintf(stderr, "CPUID: no MSR\n"); - exit(1); - } + if (!(edx & (1 << 5))) + errx(1, "CPUID: no MSR"); /* * check max extended function levels of CPUID. @@ -1992,10 +1979,8 @@ void check_cpuid() ebx = ecx = edx = 0; __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx); - if (max_level < 0x80000007) { - fprintf(stderr, "CPUID: no invariant TSC (max_level 0x%x)\n", max_level); - exit(1); - } + if (max_level < 0x80000007) + errx(1, "CPUID: no invariant TSC (max_level 0x%x)", max_level); /* * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 @@ -2004,10 +1989,8 @@ void check_cpuid() __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx); has_invariant_tsc = edx & (1 << 8); - if (!has_invariant_tsc) { - fprintf(stderr, "No invariant TSC\n"); - exit(1); - } + if (!has_invariant_tsc) + errx(1, "No invariant TSC"); /* * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 @@ -2028,7 +2011,7 @@ void check_cpuid() has_epb ? ", EPB": ""); if (!has_aperf) - exit(-1); + errx(-1, "No APERF"); do_nehalem_platform_info = genuine_intel && has_invariant_tsc; do_nhm_cstates = genuine_intel; /* all Intel w/ non-stop TSC have NHM counters */ @@ -2048,9 +2031,8 @@ void check_cpuid() void usage() { - fprintf(stderr, "%s: [-v][-R][-T][-p|-P|-S][-c MSR# | -s]][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", - progname); - exit(1); + errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR# | -s]][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", + progname); } @@ -2093,19 +2075,15 @@ void topology_probe() fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); - if (cpus == NULL) { - perror("calloc cpus"); - exit(1); - } + if (cpus == NULL) + err(1, "calloc cpus"); /* * Allocate and initialize cpu_present_set */ cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); - if (cpu_present_set == NULL) { - perror("CPU_ALLOC"); - exit(3); - } + if (cpu_present_set == NULL) + err(3, "CPU_ALLOC"); cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); CPU_ZERO_S(cpu_present_setsize, cpu_present_set); for_all_proc_cpus(mark_cpu_present); @@ -2114,10 +2092,8 @@ void topology_probe() * Allocate and initialize cpu_affinity_set */ cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); - if (cpu_affinity_set == NULL) { - perror("CPU_ALLOC"); - exit(3); - } + if (cpu_affinity_set == NULL) + err(3, "CPU_ALLOC"); cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); @@ -2201,8 +2177,7 @@ allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data return; error: - perror("calloc counters"); - exit(1); + err(1, "calloc counters"); } /* * init_counter() @@ -2259,10 +2234,8 @@ void allocate_output_buffer() { output_buffer = calloc(1, (1 + topo.num_cpus) * 256); outp = output_buffer; - if (outp == NULL) { - perror("calloc"); - exit(-1); - } + if (outp == NULL) + err(-1, "calloc output buffer"); } void setup_all_buffers(void) @@ -2316,17 +2289,13 @@ int fork_it(char **argv) } else { /* parent */ - if (child_pid == -1) { - perror("fork"); - exit(1); - } + if (child_pid == -1) + err(1, "fork"); signal(SIGINT, SIG_IGN); signal(SIGQUIT, SIG_IGN); - if (waitpid(child_pid, &status, 0) == -1) { - perror("wait"); - exit(status); - } + if (waitpid(child_pid, &status, 0) == -1) + err(status, "waitpid"); } /* * n.b. fork_it() does not check for errors from for_all_cpus() -- cgit v1.1 From 7ade7f48b1ffb21387d3694f1666f488c070860d Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Tue, 20 Aug 2013 17:20:19 -0700 Subject: turbostat: Add a .gitignore to ignore the compiled turbostat binary Signed-off-by: Josh Triplett Signed-off-by: Len Brown --- tools/power/x86/turbostat/.gitignore | 1 + 1 file changed, 1 insertion(+) create mode 100644 tools/power/x86/turbostat/.gitignore (limited to 'tools') diff --git a/tools/power/x86/turbostat/.gitignore b/tools/power/x86/turbostat/.gitignore new file mode 100644 index 0000000..7521370 --- /dev/null +++ b/tools/power/x86/turbostat/.gitignore @@ -0,0 +1 @@ +turbostat -- cgit v1.1 From e6f9bb3cc63346e457405ef30209b3d2e18c5992 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 3 Dec 2013 02:19:19 -0500 Subject: turbostat: run on HSX Haswell Xeon has slightly different RAPL support than client HSW, which prevented the previous version of turbostat from running on HSX. Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 42 ++++++++++++++++++++++++++--------- 1 file changed, 31 insertions(+), 11 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index c8cce5d..02afe35 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -80,14 +80,32 @@ unsigned int tcc_activation_temp_override; double rapl_power_units, rapl_energy_units, rapl_time_units; double rapl_joule_counter_range; -#define RAPL_PKG (1 << 0) -#define RAPL_CORES (1 << 1) -#define RAPL_GFX (1 << 2) -#define RAPL_DRAM (1 << 3) -#define RAPL_PKG_PERF_STATUS (1 << 4) -#define RAPL_DRAM_PERF_STATUS (1 << 5) -#define RAPL_PKG_POWER_INFO (1 << 6) -#define RAPL_CORE_POLICY (1 << 7) +#define RAPL_PKG (1 << 0) + /* 0x610 MSR_PKG_POWER_LIMIT */ + /* 0x611 MSR_PKG_ENERGY_STATUS */ +#define RAPL_PKG_PERF_STATUS (1 << 1) + /* 0x613 MSR_PKG_PERF_STATUS */ +#define RAPL_PKG_POWER_INFO (1 << 2) + /* 0x614 MSR_PKG_POWER_INFO */ + +#define RAPL_DRAM (1 << 3) + /* 0x618 MSR_DRAM_POWER_LIMIT */ + /* 0x619 MSR_DRAM_ENERGY_STATUS */ + /* 0x61c MSR_DRAM_POWER_INFO */ +#define RAPL_DRAM_PERF_STATUS (1 << 4) + /* 0x61b MSR_DRAM_PERF_STATUS */ + +#define RAPL_CORES (1 << 5) + /* 0x638 MSR_PP0_POWER_LIMIT */ + /* 0x639 MSR_PP0_ENERGY_STATUS */ +#define RAPL_CORE_POLICY (1 << 6) + /* 0x63a MSR_PP0_POLICY */ + + +#define RAPL_GFX (1 << 7) + /* 0x640 MSR_PP1_POWER_LIMIT */ + /* 0x641 MSR_PP1_ENERGY_STATUS */ + /* 0x642 MSR_PP1_POLICY */ #define TJMAX_DEFAULT 100 #define MAX(a, b) ((a) > (b) ? (a) : (b)) @@ -1449,7 +1467,7 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) case 0x3A: /* IVB */ case 0x3E: /* IVB Xeon */ case 0x3C: /* HSW */ - case 0x3F: /* HSW */ + case 0x3F: /* HSX */ case 0x45: /* HSW */ case 0x46: /* HSW */ case 0x37: /* BYT */ @@ -1565,11 +1583,13 @@ void rapl_probe(unsigned int family, unsigned int model) case 0x2A: case 0x3A: case 0x3C: /* HSW */ - case 0x3F: /* HSW */ case 0x45: /* HSW */ case 0x46: /* HSW */ do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO; break; + case 0x3F: /* HSX */ + do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO; + break; case 0x2D: case 0x3E: do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO; @@ -2366,7 +2386,7 @@ int main(int argc, char **argv) cmdline(argc, argv); if (verbose) - fprintf(stderr, "turbostat v3.5 April 26, 2013" + fprintf(stderr, "turbostat v3.6 Dec 2, 2013" " - Len Brown \n"); turbostat_init(); -- cgit v1.1 From 5c56be9a25bad1af44d25a892a5de3dec03babc7 Mon Sep 17 00:00:00 2001 From: Dirk Brandewie Date: Mon, 16 Dec 2013 10:23:41 -0800 Subject: turbostat: Add option to report joules consumed per sample Add "-J" option to report energy consumed in joules per sample. This option also adds the sample time to the reported values. Signed-off-by: Dirk Brandewie Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 91 +++++++++++++++++++++++++---------- 1 file changed, 66 insertions(+), 25 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 02afe35..a83a37e 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -43,6 +43,7 @@ char *proc_stat = "/proc/stat"; unsigned int interval_sec = 5; /* set with -i interval_sec */ unsigned int verbose; /* set with -v */ unsigned int rapl_verbose; /* set with -R */ +unsigned int rapl_joules; /* set with -J */ unsigned int thermal_verbose; /* set with -T */ unsigned int summary_only; /* set with -s */ unsigned int skip_c0; @@ -317,19 +318,35 @@ void print_header(void) outp += sprintf(outp, " %%pc10"); } - if (do_rapl & RAPL_PKG) - outp += sprintf(outp, " Pkg_W"); - if (do_rapl & RAPL_CORES) - outp += sprintf(outp, " Cor_W"); - if (do_rapl & RAPL_GFX) - outp += sprintf(outp, " GFX_W"); - if (do_rapl & RAPL_DRAM) - outp += sprintf(outp, " RAM_W"); - if (do_rapl & RAPL_PKG_PERF_STATUS) - outp += sprintf(outp, " PKG_%%"); - if (do_rapl & RAPL_DRAM_PERF_STATUS) - outp += sprintf(outp, " RAM_%%"); + if (do_rapl && !rapl_joules) { + if (do_rapl & RAPL_PKG) + outp += sprintf(outp, " Pkg_W"); + if (do_rapl & RAPL_CORES) + outp += sprintf(outp, " Cor_W"); + if (do_rapl & RAPL_GFX) + outp += sprintf(outp, " GFX_W"); + if (do_rapl & RAPL_DRAM) + outp += sprintf(outp, " RAM_W"); + if (do_rapl & RAPL_PKG_PERF_STATUS) + outp += sprintf(outp, " PKG_%%"); + if (do_rapl & RAPL_DRAM_PERF_STATUS) + outp += sprintf(outp, " RAM_%%"); + } else { + if (do_rapl & RAPL_PKG) + outp += sprintf(outp, " Pkg_J"); + if (do_rapl & RAPL_CORES) + outp += sprintf(outp, " Cor_J"); + if (do_rapl & RAPL_GFX) + outp += sprintf(outp, " GFX_J"); + if (do_rapl & RAPL_DRAM) + outp += sprintf(outp, " RAM_W"); + if (do_rapl & RAPL_PKG_PERF_STATUS) + outp += sprintf(outp, " PKG_%%"); + if (do_rapl & RAPL_DRAM_PERF_STATUS) + outp += sprintf(outp, " RAM_%%"); + outp += sprintf(outp, " time"); + } outp += sprintf(outp, "\n"); } @@ -548,19 +565,39 @@ int format_counters(struct thread_data *t, struct core_data *c, fmt6 = " %4.0f**"; } - if (do_rapl & RAPL_PKG) - outp += sprintf(outp, fmt6, p->energy_pkg * rapl_energy_units / interval_float); - if (do_rapl & RAPL_CORES) - outp += sprintf(outp, fmt6, p->energy_cores * rapl_energy_units / interval_float); - if (do_rapl & RAPL_GFX) - outp += sprintf(outp, fmt5, p->energy_gfx * rapl_energy_units / interval_float); - if (do_rapl & RAPL_DRAM) - outp += sprintf(outp, fmt5, p->energy_dram * rapl_energy_units / interval_float); - if (do_rapl & RAPL_PKG_PERF_STATUS ) - outp += sprintf(outp, fmt5, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); - if (do_rapl & RAPL_DRAM_PERF_STATUS ) - outp += sprintf(outp, fmt5, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); + if (do_rapl && !rapl_joules) { + if (do_rapl & RAPL_PKG) + outp += sprintf(outp, fmt6, p->energy_pkg * rapl_energy_units / interval_float); + if (do_rapl & RAPL_CORES) + outp += sprintf(outp, fmt6, p->energy_cores * rapl_energy_units / interval_float); + if (do_rapl & RAPL_GFX) + outp += sprintf(outp, fmt5, p->energy_gfx * rapl_energy_units / interval_float); + if (do_rapl & RAPL_DRAM) + outp += sprintf(outp, fmt5, p->energy_dram * rapl_energy_units / interval_float); + if (do_rapl & RAPL_PKG_PERF_STATUS) + outp += sprintf(outp, fmt5, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); + if (do_rapl & RAPL_DRAM_PERF_STATUS) + outp += sprintf(outp, fmt5, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); + } else { + if (do_rapl & RAPL_PKG) + outp += sprintf(outp, fmt6, + p->energy_pkg * rapl_energy_units); + if (do_rapl & RAPL_CORES) + outp += sprintf(outp, fmt6, + p->energy_cores * rapl_energy_units); + if (do_rapl & RAPL_GFX) + outp += sprintf(outp, fmt5, + p->energy_gfx * rapl_energy_units); + if (do_rapl & RAPL_DRAM) + outp += sprintf(outp, fmt5, + p->energy_dram * rapl_energy_units); + if (do_rapl & RAPL_PKG_PERF_STATUS) + outp += sprintf(outp, fmt5, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); + if (do_rapl & RAPL_DRAM_PERF_STATUS) + outp += sprintf(outp, fmt5, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); + outp += sprintf(outp, fmt5, interval_float); + } done: outp += sprintf(outp, "\n"); @@ -2340,7 +2377,7 @@ void cmdline(int argc, char **argv) progname = argv[0]; - while ((opt = getopt(argc, argv, "+pPSvi:sc:sC:m:M:RT:")) != -1) { + while ((opt = getopt(argc, argv, "+pPSvi:sc:sC:m:M:RJT:")) != -1) { switch (opt) { case 'p': show_core_only++; @@ -2375,6 +2412,10 @@ void cmdline(int argc, char **argv) case 'T': tcc_activation_temp_override = atoi(optarg); break; + case 'J': + rapl_joules++; + break; + default: usage(); } -- cgit v1.1 From f591c38b917fed99ac9cdfada84c3117ce4e0a1b Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 23 Jan 2014 17:13:14 +0200 Subject: tools/power turbostat: remove unused command line option The -s is not used, let's remove it, and update quick help accordingly. Signed-off-by: Andy Shevchenko Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index a83a37e..e92c614 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -45,7 +45,7 @@ unsigned int verbose; /* set with -v */ unsigned int rapl_verbose; /* set with -R */ unsigned int rapl_joules; /* set with -J */ unsigned int thermal_verbose; /* set with -T */ -unsigned int summary_only; /* set with -s */ +unsigned int summary_only; /* set with -S */ unsigned int skip_c0; unsigned int skip_c1; unsigned int do_nhm_cstates; @@ -2088,7 +2088,7 @@ void check_cpuid() void usage() { - errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR# | -s]][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", + errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", progname); } @@ -2377,7 +2377,7 @@ void cmdline(int argc, char **argv) progname = argv[0]; - while ((opt = getopt(argc, argv, "+pPSvi:sc:sC:m:M:RJT:")) != -1) { + while ((opt = getopt(argc, argv, "+pPSvi:c:C:m:M:RJT:")) != -1) { switch (opt) { case 'p': show_core_only++; -- cgit v1.1 From 3b4d5c7fec0a0b1bbf56d3b8337770fa30f4d1ad Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 23 Jan 2014 17:13:15 +0200 Subject: tools/power turbostat: introduce -s to dump counters The new option allows just run turbostat and get dump of counter values. It's useful when we have something more than one program to test. Signed-off-by: Andy Shevchenko Signed-off-by: Len Brown --- tools/power/x86/turbostat/turbostat.c | 98 +++++++++++++++++++++++------------ 1 file changed, 65 insertions(+), 33 deletions(-) (limited to 'tools') diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index e92c614..77eb130 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -46,6 +46,7 @@ unsigned int rapl_verbose; /* set with -R */ unsigned int rapl_joules; /* set with -J */ unsigned int thermal_verbose; /* set with -T */ unsigned int summary_only; /* set with -S */ +unsigned int dump_only; /* set with -s */ unsigned int skip_c0; unsigned int skip_c1; unsigned int do_nhm_cstates; @@ -353,51 +354,57 @@ void print_header(void) int dump_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) { - fprintf(stderr, "t %p, c %p, p %p\n", t, c, p); + outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p); if (t) { - fprintf(stderr, "CPU: %d flags 0x%x\n", t->cpu_id, t->flags); - fprintf(stderr, "TSC: %016llX\n", t->tsc); - fprintf(stderr, "aperf: %016llX\n", t->aperf); - fprintf(stderr, "mperf: %016llX\n", t->mperf); - fprintf(stderr, "c1: %016llX\n", t->c1); - fprintf(stderr, "msr0x%x: %08llX\n", + outp += sprintf(outp, "CPU: %d flags 0x%x\n", + t->cpu_id, t->flags); + outp += sprintf(outp, "TSC: %016llX\n", t->tsc); + outp += sprintf(outp, "aperf: %016llX\n", t->aperf); + outp += sprintf(outp, "mperf: %016llX\n", t->mperf); + outp += sprintf(outp, "c1: %016llX\n", t->c1); + outp += sprintf(outp, "msr0x%x: %08llX\n", extra_delta_offset32, t->extra_delta32); - fprintf(stderr, "msr0x%x: %016llX\n", + outp += sprintf(outp, "msr0x%x: %016llX\n", extra_delta_offset64, t->extra_delta64); - fprintf(stderr, "msr0x%x: %08llX\n", + outp += sprintf(outp, "msr0x%x: %08llX\n", extra_msr_offset32, t->extra_msr32); - fprintf(stderr, "msr0x%x: %016llX\n", + outp += sprintf(outp, "msr0x%x: %016llX\n", extra_msr_offset64, t->extra_msr64); if (do_smi) - fprintf(stderr, "SMI: %08X\n", t->smi_count); + outp += sprintf(outp, "SMI: %08X\n", t->smi_count); } if (c) { - fprintf(stderr, "core: %d\n", c->core_id); - fprintf(stderr, "c3: %016llX\n", c->c3); - fprintf(stderr, "c6: %016llX\n", c->c6); - fprintf(stderr, "c7: %016llX\n", c->c7); - fprintf(stderr, "DTS: %dC\n", c->core_temp_c); + outp += sprintf(outp, "core: %d\n", c->core_id); + outp += sprintf(outp, "c3: %016llX\n", c->c3); + outp += sprintf(outp, "c6: %016llX\n", c->c6); + outp += sprintf(outp, "c7: %016llX\n", c->c7); + outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c); } if (p) { - fprintf(stderr, "package: %d\n", p->package_id); - fprintf(stderr, "pc2: %016llX\n", p->pc2); - fprintf(stderr, "pc3: %016llX\n", p->pc3); - fprintf(stderr, "pc6: %016llX\n", p->pc6); - fprintf(stderr, "pc7: %016llX\n", p->pc7); - fprintf(stderr, "pc8: %016llX\n", p->pc8); - fprintf(stderr, "pc9: %016llX\n", p->pc9); - fprintf(stderr, "pc10: %016llX\n", p->pc10); - fprintf(stderr, "Joules PKG: %0X\n", p->energy_pkg); - fprintf(stderr, "Joules COR: %0X\n", p->energy_cores); - fprintf(stderr, "Joules GFX: %0X\n", p->energy_gfx); - fprintf(stderr, "Joules RAM: %0X\n", p->energy_dram); - fprintf(stderr, "Throttle PKG: %0X\n", p->rapl_pkg_perf_status); - fprintf(stderr, "Throttle RAM: %0X\n", p->rapl_dram_perf_status); - fprintf(stderr, "PTM: %dC\n", p->pkg_temp_c); + outp += sprintf(outp, "package: %d\n", p->package_id); + outp += sprintf(outp, "pc2: %016llX\n", p->pc2); + outp += sprintf(outp, "pc3: %016llX\n", p->pc3); + outp += sprintf(outp, "pc6: %016llX\n", p->pc6); + outp += sprintf(outp, "pc7: %016llX\n", p->pc7); + outp += sprintf(outp, "pc8: %016llX\n", p->pc8); + outp += sprintf(outp, "pc9: %016llX\n", p->pc9); + outp += sprintf(outp, "pc10: %016llX\n", p->pc10); + outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg); + outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores); + outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx); + outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram); + outp += sprintf(outp, "Throttle PKG: %0X\n", + p->rapl_pkg_perf_status); + outp += sprintf(outp, "Throttle RAM: %0X\n", + p->rapl_dram_perf_status); + outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c); } + + outp += sprintf(outp, "\n"); + return 0; } @@ -2289,7 +2296,7 @@ int initialize_counters(int cpu_id) void allocate_output_buffer() { - output_buffer = calloc(1, (1 + topo.num_cpus) * 256); + output_buffer = calloc(1, (1 + topo.num_cpus) * 1024); outp = output_buffer; if (outp == NULL) err(-1, "calloc output buffer"); @@ -2303,6 +2310,7 @@ void setup_all_buffers(void) allocate_output_buffer(); for_all_proc_cpus(initialize_counters); } + void turbostat_init() { check_cpuid(); @@ -2371,13 +2379,30 @@ int fork_it(char **argv) return status; } +int get_and_dump_counters(void) +{ + int status; + + status = for_all_cpus(get_counters, ODD_COUNTERS); + if (status) + return status; + + status = for_all_cpus(dump_counters, ODD_COUNTERS); + if (status) + return status; + + flush_stdout(); + + return status; +} + void cmdline(int argc, char **argv) { int opt; progname = argv[0]; - while ((opt = getopt(argc, argv, "+pPSvi:c:C:m:M:RJT:")) != -1) { + while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) { switch (opt) { case 'p': show_core_only++; @@ -2385,6 +2410,9 @@ void cmdline(int argc, char **argv) case 'P': show_pkg_only++; break; + case 's': + dump_only++; + break; case 'S': summary_only++; break; @@ -2432,6 +2460,10 @@ int main(int argc, char **argv) turbostat_init(); + /* dump counters and exit */ + if (dump_only) + return get_and_dump_counters(); + /* * if any params left, it must be a command to fork */ -- cgit v1.1