Bug #2001

kqueue - Firefox and thunderbird CPU usage

Added by tuxillo almost 4 years ago. Updated almost 4 years ago.

Status:NewStart date:
Priority:NormalDue date:
Assignee:-% Done:

0%

Category:-
Target version:-

Description

Hi,

Firefox -----
During certain operations, such establishing a connection but not receiving a
reply I've noticed that estd raises the CPU frequency and puts it up to the max.
Taking a look at top I don't see anything obvious like xulrunner-bin process
using a lot of CPU.

In the mean time I ktrace'd xulrunner-bin and here's the result:

Total CALL lines in the ktrace.out:

[dfbsdx64] ~/@@0x00000002368ec770> kdump -f ktrace.out | grep CALL | wc -l
1309637

Thunderbird ----
I haven't been able to establish a relation on why this happens, neither I've
done a ktrace but I will try to do it next time it happens.

[dfbsdx64] ~/@@0x00000002368ec770> kdump -f ktrace.out | grep CALL | grep poll |
wc -l
315401

I don't know where the problem is yet. Some more information from other users
experiencing the same issue would be helpful, I guess.

Cheers,
Antonio Huete

History

#1 Updated by dirk.meyer almost 4 years ago

> During certain operations, such establishing a connection but not receiving a
> reply I've noticed that estd raises the CPU frequency and puts it up to the max.
> Taking a look at top I don't see anything obvious like xulrunner-bin process
> using a lot of CPU.

Try to open http://127.0.0.1/ with no server running on the system.

Same on FreeBSD i386
https://bugzilla.mozilla.org/show_bug.cgi?id=595823

kind regards Dirk

- Dirk Meyer, Im Grund 4, 34317 Habichtswald, Germany
- [],[],[]

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