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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-03 10:45:39 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-03 10:45:39 -0700 |
commit | f2d285669aae656dfeafa0bf25e86bbbc5d22329 (patch) | |
tree | 4391c45051429c09199d7fd2ca6ca0dd142a5ed6 /tools/power/pm-graph/sleepgraph.8 | |
parent | be5537542743f72c7cedddd145c17cf7706baa23 (diff) | |
parent | 103cf0e5799ce024fd28dfab716d7111afe4b117 (diff) | |
download | op-kernel-dev-f2d285669aae656dfeafa0bf25e86bbbc5d22329.zip op-kernel-dev-f2d285669aae656dfeafa0bf25e86bbbc5d22329.tar.gz |
Merge tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These update the cpuidle poll state definition to reduce excessive
energy usage related to it, add new CPU ID to the RAPL power capping
driver, update the ACPI system suspend code to handle some special
cases better, extend the PM core's device links code slightly, add new
sysfs attribute for better suspend-to-idle diagnostics and easier
hibernation handling, update power management tools and clean up
cpufreq quite a bit.
Specifics:
- Modify the cpuidle poll state implementation to prevent CPUs from
staying in the loop in there for excessive times (Rafael Wysocki).
- Add Intel Cannon Lake chips support to the RAPL power capping
driver (Joe Konno).
- Add reference counting to the device links handling code in the PM
core (Lukas Wunner).
- Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
suspend code (Rafael Wysocki).
- Allow devices to be put into deeper low-power states via ACPI if
both _SxD and _SxW are missing (Daniel Drake).
- Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
keyboard wakeup issue on Asus UX331UA (Chris Chiu).
- Prevent the PCMCIA library code from aborting suspend-to-idle due
to noirq suspend failures resulting from incorrect assumptions
(Rafael Wysocki).
- Add coupled cpuidle supprt to the Exynos3250 platform (Marek
Szyprowski).
- Add new sysfs file to make it easier to specify the image storage
location during hibernation (Mario Limonciello).
- Add sysfs files for collecting suspend-to-idle usage and time
statistics for CPU idle states (Rafael Wysocki).
- Update the pm-graph utilities (Todd Brandt).
- Reduce the kernel log noise related to reporting Low-power Idle
constraings by the ACPI system suspend code (Rafael Wysocki).
- Make it easier to distinguish dedicated wakeup IRQs in the
/proc/interrupts output (Tony Lindgren).
- Add the frequency table validation in cpufreq to the core and drop
it from a number of cpufreq drivers (Viresh Kumar).
- Drop "cooling-{min|max}-level" for CPU nodes from a couple of DT
bindings (Viresh Kumar).
- Clean up the CPU online error code path in the cpufreq core (Viresh
Kumar).
- Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian, Viresh
Kumar).
- Drop memory allocation error messages from a few places in cpufreq
and cpuildle drivers (Markus Elfring)"
* tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
cpufreq: CPPC: Use transition_delay_us depending transition_latency
PM / hibernate: Change message when writing to /sys/power/resume
PM / hibernate: Make passing hibernate offsets more friendly
cpuidle: poll_state: Avoid invoking local_clock() too often
PM: cpuidle/suspend: Add s2idle usage and time state attributes
cpuidle: Enable coupled cpuidle support on Exynos3250 platform
cpuidle: poll_state: Add time limit to poll_idle()
cpufreq: tegra186: Don't validate the frequency table twice
cpufreq: speedstep: Don't validate the frequency table twice
cpufreq: sparc: Don't validate the frequency table twice
cpufreq: sh: Don't validate the frequency table twice
cpufreq: sfi: Don't validate the frequency table twice
cpufreq: scpi: Don't validate the frequency table twice
cpufreq: sc520: Don't validate the frequency table twice
cpufreq: s3c24xx: Don't validate the frequency table twice
cpufreq: qoirq: Don't validate the frequency table twice
cpufreq: pxa: Don't validate the frequency table twice
cpufreq: ppc_cbe: Don't validate the frequency table twice
cpufreq: powernow: Don't validate the frequency table twice
...
Diffstat (limited to 'tools/power/pm-graph/sleepgraph.8')
-rw-r--r-- | tools/power/pm-graph/sleepgraph.8 | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/tools/power/pm-graph/sleepgraph.8 b/tools/power/pm-graph/sleepgraph.8 index fbe7bd3..18baaf6 100644 --- a/tools/power/pm-graph/sleepgraph.8 +++ b/tools/power/pm-graph/sleepgraph.8 @@ -52,9 +52,32 @@ disable rtcwake and require a user keypress to resume. \fB-addlogs\fR Add the dmesg and ftrace logs to the html output. They will be viewable by clicking buttons in the timeline. +.TP +\fB-result \fIfile\fR +Export a results table to a text file for parsing. +.TP +\fB-sync\fR +Sync the filesystems before starting the test. This reduces the size of +the sys_sync call which happens in the suspend_prepare phase. +.TP +\fB-rs \fIenable/disable\fR +During test, enable/disable runtime suspend for all devices. The test is delayed +by 5 seconds to allow runtime suspend changes to occur. The settings are restored +after the test is complete. +.TP +\fB-display \fIon/off\fR +Turn the display on or off for the test using the xset command. This helps +maintain the consistecy of test data for better comparison. +.TP +\fB-skiphtml\fR +Run the test and capture the trace logs, but skip the timeline generation. .SS "advanced" .TP +\fB-gzip\fR +Gzip the trace and dmesg logs to save space. The tool can also read in gzipped +logs for processing. +.TP \fB-cmd \fIstr\fR Run the timeline over a custom suspend command, e.g. pm-suspend. By default the tool forces suspend via /sys/power/state so this allows testing over @@ -114,6 +137,18 @@ This reduces the html file size as there can be many tiny callgraphs which are barely visible in the timeline. The value is a float: e.g. 0.001 represents 1 us. .TP +\fB-cgfilter \fI"func1,func2,..."\fR +Reduce callgraph output in the timeline by limiting it to a list of calls. The +argument can be a single function name or a comma delimited list. +(default: none) +.TP +\fB-cgskip \fIfile\fR +Reduce callgraph timeline size by skipping over uninteresting functions +in the trace, e.g. printk or console_unlock. The functions listed +in this file will show up as empty leaves in the callgraph with only the start/end +times displayed. cgskip.txt is used automatically if found in the path, so +use "off" to disable completely (default: cgskip.txt) +.TP \fB-cgphase \fIp\fR Only show callgraph data for phase \fIp\fR (e.g. suspend_late). .TP @@ -122,6 +157,9 @@ In an x2 run, only show callgraph data for test \fIn\fR (e.g. 0 or 1). .TP \fB-timeprec \fIn\fR Number of significant digits in timestamps (0:S, [3:ms], 6:us). +.TP +\fB-bufsize \fIN\fR +Set trace buffer size to N kilo-bytes (default: all of free memory up to 3GB) .SH COMMANDS .TP @@ -144,11 +182,8 @@ Print out the contents of the ACPI Firmware Performance Data Table. \fB-sysinfo\fR Print out system info extracted from BIOS. Reads /dev/mem directly instead of going through dmidecode. .TP -\fB-usbtopo\fR -Print out the current USB topology with power info. -.TP -\fB-usbauto\fR -Enable autosuspend for all connected USB devices. +\fB-devinfo\fR +Print out the pm settings of all devices which support runtime suspend. .TP \fB-flist\fR Print the list of ftrace functions currently being captured. Functions @@ -198,7 +233,7 @@ Execute a mem suspend with a 15 second wakeup. Include the logs in the html. .PP Execute a standby with a 15 second wakeup. Change the output folder name. .IP -\f(CW$ sudo sleepgraph -m standby -rtcwake 15 -o "standby-{hostname}-{date}-{time}"\fR +\f(CW$ sudo sleepgraph -m standby -rtcwake 15 -o "standby-{host}-{date}-{time}"\fR .PP Execute a freeze with no wakeup (require keypress). Change output folder name. .IP |