Closed Bug 1838497 Opened 11 months ago Closed 9 months ago

Add a profiler feature to record the clock frequency of every core while sampling

Categories

(Core :: Gecko Profiler, task, P1)

Product:
Core
Component:
Gecko Profiler
Type:
task

Tracking

()

Status:
RESOLVED FIXED
Milestone:
118 Branch
Tracking Flags:
Tracking Status
firefox118 --- fixed

People

(Reporter: florian, Assigned: florian)

Details

Attachments

(2 files)

Bug 1838497 - Add a profiler feature to record the clock frequency of every core while sampling, r=canaltinova.
48 bytes, text/x-phabricator-request
Details | Review
cpu.cpp
1.75 KB, text/x-c++src
Details
No description provided.
Severity: -- → N/A
Priority: -- → P1
Attached file cpu.cpp —

This brings down the cost of getting the cpu frequency to 1.5us on my machine, instead of about 6us, by keeping the fd open and seeking to the beginning instead.

Pushed by fqueze@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/eab13316c6b3
Add a profiler feature to record the clock frequency of every core while sampling, r=canaltinova.

https://hg.mozilla.org/mozilla-central/rev/eab13316c6b3

Status: ASSIGNED → RESOLVED
Closed: 9 months ago
status-firefox118: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → 118 Branch
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