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Date: Tue, 1 Jul 2008 10:49:12 +0200
From: Gary Jennejohn <gary.jennejohn@freenet.de>
To: vova@fbsd.ru
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Cc: cvs-src@FreeBSD.org, src-committers@FreeBSD.org,
	David Xu <davidxu@FreeBSD.org>, cvs-all@FreeBSD.org, current@FreeBSD.org
Subject: Re: [fwd] cvs commit: src/lib/libthr/thread thr_mutex.c thr_umtx.c
 thr_umtx.h src/sys/kern kern_umtx.c src/sys/sys umtx.h
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On Mon, 30 Jun 2008 22:28:44 +0400
Vladimir Grebenschikov <vova@fbsd.ru> wrote:

> On Tue, 2008-06-24 at 07:32 +0000, David Xu wrote:
> 
> This commit makes threaded application almost unusable on 8-CURRENT.
> 
> Applications eat 100% CPU all the time and works _very_ slowly.
> (top shows several threads for every constantly applications eating CPU)
> 
> Following applications are affected for me: firefox, evolution, eclipse
> (probably more).
> 
> Reverting user-land part of commit fixes problem, reverting kernel
> changes nothing regarding the problem.
> 
> I have:
> FreeBSD 8.0-CURRENT #0: Fri Jun 20 17:14:23 MSD 2008
>     root@vbook.fbsd.ru:/usr/obj/usr/src/sys/VBOOK
> Timecounter "i8254" frequency 1193182 Hz quality 0
> CPU: Intel(R) Core(TM)2 CPU         T7200  @ 2.00GHz (1995.01-MHz 686-class CPU)
>   Origin = "GenuineIntel"  Id = 0x6f6  Stepping = 6
>   Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
>   Features2=0xe3bd<SSE3,RSVD2,MON,DS_CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM>
>   AMD Features=0x20100000<NX,LM>
>   AMD Features2=0x1<LAHF>
>   Cores per package: 2
> 
[snip commit message]

Did you recompile these misbehaving applications?

I ask because I installed a fresh world yesterday, without recompiling
any ports, and I'm _not_ seeing any misbehavior with firefox.

---
Gary Jennejohn