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→Basic steps
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* Chrome or Content process CPU bound | * Chrome or Content process CPU bound | ||
** <font color="red">How to make sure the platform is not chrome process CPU bound?</font> In most cases, CPU bound happens in Content process. | ** <font color="red">How to make sure the platform is not chrome process CPU bound?</font> In most cases, CPU bound happens in Content process. | ||
* memcpy peformance | * memcpy peformance | ||
** System memory to graphic memory copy | ** System memory to graphic memory copy | ||
** System memory to system memory copy | ** System memory to system memory copy | ||
*CPU | *CPU Scheduler/ CPU Governor | ||
** | ** Lock CPU cores and frequency(platform-dependent) | ||
For example: | For example: | ||
adb shell echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor | adb shell echo performance > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor | ||
| Line 31: | Line 29: | ||
For example: | For example: | ||
watch -n 0.3 "adb shell cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" | watch -n 0.3 "adb shell cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq" | ||
** | ** Use simple script to see CPU loading and frequency | ||
*** adb shell while true; do i=1; done | *** adb shell while true; do i=1; done | ||
** Gecko profiler[https://intranet.mozilla.org/TPEPlatform/PerfTool] to get the callstack of CPU bound | ** Gecko profiler[https://intranet.mozilla.org/TPEPlatform/PerfTool] to get the callstack of CPU bound | ||