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| author | simonjam@chromium.org <simonjam@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-08-08 17:24:18 +0000 |
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| committer | simonjam@chromium.org <simonjam@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-08-08 17:24:18 +0000 |
| commit | 36e8fd4262f978cd7b72741bf853d0ce2a60155e (patch) | |
| tree | e600b572263a16d6c3d6da3ddaee2d75dd5ab256 /base/process/internal_linux.h | |
| parent | 21e783891923b591af9f5f3ed67d558cfda8a6a6 (diff) | |
| download | chromium_src-36e8fd4262f978cd7b72741bf853d0ce2a60155e.zip chromium_src-36e8fd4262f978cd7b72741bf853d0ce2a60155e.tar.gz chromium_src-36e8fd4262f978cd7b72741bf853d0ce2a60155e.tar.bz2 | |
Add CurrentProcessInfo::CreationTime() for Linux
This is used to measure startup performance.
BUG=None
Review URL: https://chromiumcodereview.appspot.com/21302005
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@216409 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/process/internal_linux.h')
| -rw-r--r-- | base/process/internal_linux.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/base/process/internal_linux.h b/base/process/internal_linux.h index 88d32ee..a10cee3 100644 --- a/base/process/internal_linux.h +++ b/base/process/internal_linux.h @@ -11,6 +11,10 @@ #include "base/files/file_path.h" namespace base { + +class Time; +class TimeDelta; + namespace internal { // "/proc" @@ -49,6 +53,7 @@ enum ProcStatsFields { VM_UTIME = 13, // Time scheduled in user mode in clock ticks. VM_STIME = 14, // Time scheduled in kernel mode in clock ticks. VM_NUMTHREADS = 19, // Number of threads. + VM_STARTTIME = 21, // The time the process started in clock ticks. VM_VSIZE = 22, // Virtual memory size in bytes. VM_RSS = 23, // Resident Set Size in pages. }; @@ -72,6 +77,12 @@ int ReadProcStatsAndGetFieldAsInt(pid_t pid, size_t ReadProcStatsAndGetFieldAsSizeT(pid_t pid, ProcStatsFields field_num); +// Returns the time that the OS started. Clock ticks are relative to this. +Time GetBootTime(); + +// Converts Linux clock ticks to a wall time delta. +TimeDelta ClockTicksToTimeDelta(int clock_ticks); + } // namespace internal } // namespace base |