diff options
Diffstat (limited to 'sbin/nvmecontrol/perftest.c')
| -rw-r--r-- | sbin/nvmecontrol/perftest.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/sbin/nvmecontrol/perftest.c b/sbin/nvmecontrol/perftest.c new file mode 100644 index 0000000..a7339bf --- /dev/null +++ b/sbin/nvmecontrol/perftest.c @@ -0,0 +1,176 @@ +/*- + * Copyright (C) 2012-2013 Intel Corporation + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/ioccom.h> + +#include <ctype.h> +#include <err.h> +#include <fcntl.h> +#include <stdbool.h> +#include <stddef.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "nvmecontrol.h" + +static void +print_perftest(struct nvme_io_test *io_test, bool perthread) +{ + uint32_t i, io_completed = 0, iops, mbps; + + for (i = 0; i < io_test->num_threads; i++) + io_completed += io_test->io_completed[i]; + + iops = io_completed/io_test->time; + mbps = iops * io_test->size / (1024*1024); + + printf("Threads: %2d Size: %6d %5s Time: %3d IO/s: %7d MB/s: %4d\n", + io_test->num_threads, io_test->size, + io_test->opc == NVME_OPC_READ ? "READ" : "WRITE", + io_test->time, iops, mbps); + + if (perthread) + for (i = 0; i < io_test->num_threads; i++) + printf("\t%3d: %8d IO/s\n", i, + io_test->io_completed[i]/io_test->time); + + exit(1); +} + +static void +perftest_usage(void) +{ + fprintf(stderr, "usage:\n"); + fprintf(stderr, PERFTEST_USAGE); + exit(1); +} + +void +perftest(int argc, char *argv[]) +{ + struct nvme_io_test io_test; + int fd; + char ch; + char *p; + u_long ioctl_cmd = NVME_IO_TEST; + bool nflag, oflag, sflag, tflag; + int perthread = 0; + + nflag = oflag = sflag = tflag = false; + + memset(&io_test, 0, sizeof(io_test)); + + while ((ch = getopt(argc, argv, "f:i:n:o:ps:t:")) != -1) { + switch (ch) { + case 'f': + if (!strcmp(optarg, "refthread")) + io_test.flags |= NVME_TEST_FLAG_REFTHREAD; + break; + case 'i': + if (!strcmp(optarg, "bio") || + !strcmp(optarg, "wait")) + ioctl_cmd = NVME_BIO_TEST; + else if (!strcmp(optarg, "io") || + !strcmp(optarg, "intr")) + ioctl_cmd = NVME_IO_TEST; + break; + case 'n': + nflag = true; + io_test.num_threads = strtoul(optarg, &p, 0); + if (p != NULL && *p != '\0') { + fprintf(stderr, + "\"%s\" not valid number of threads.\n", + optarg); + perftest_usage(); + } else if (io_test.num_threads == 0 || + io_test.num_threads > 128) { + fprintf(stderr, + "\"%s\" not valid number of threads.\n", + optarg); + perftest_usage(); + } + break; + case 'o': + oflag = true; + if (!strcmp(optarg, "read") || !strcmp(optarg, "READ")) + io_test.opc = NVME_OPC_READ; + else if (!strcmp(optarg, "write") || + !strcmp(optarg, "WRITE")) + io_test.opc = NVME_OPC_WRITE; + else { + fprintf(stderr, "\"%s\" not valid opcode.\n", + optarg); + perftest_usage(); + } + break; + case 'p': + perthread = 1; + break; + case 's': + sflag = true; + io_test.size = strtoul(optarg, &p, 0); + if (p == NULL || *p == '\0' || toupper(*p) == 'B') { + // do nothing + } else if (toupper(*p) == 'K') { + io_test.size *= 1024; + } else if (toupper(*p) == 'M') { + io_test.size *= 1024 * 1024; + } else { + fprintf(stderr, "\"%s\" not valid size.\n", + optarg); + perftest_usage(); + } + break; + case 't': + tflag = true; + io_test.time = strtoul(optarg, &p, 0); + if (p != NULL && *p != '\0') { + fprintf(stderr, + "\"%s\" not valid time duration.\n", + optarg); + perftest_usage(); + } + break; + } + } + + if (!nflag || !oflag || !sflag || !tflag || optind >= argc) + perftest_usage(); + + open_dev(argv[optind], &fd, 1, 1); + if (ioctl(fd, ioctl_cmd, &io_test) < 0) + err(1, "ioctl NVME_IO_TEST failed"); + + close(fd); + print_perftest(&io_test, perthread); + exit(0); +} |
