ULE/yielding patch for testing.
Marc Fonvieille
blackend at freebsd.org
Mon Oct 8 07:27:36 PDT 2007
On Sun, Oct 07, 2007 at 11:44:13AM -0700, Jeff Roberson wrote:
> On Sun, 7 Oct 2007, Marc Fonvieille wrote:
>
>> On Sun, Oct 07, 2007 at 05:00:05AM -0700, Jeff Roberson wrote:
>>>>
>>>> You mean Xorg 7.2 or 7.3 with -CURRENT?
>>>> Currently I observe the problem with Xorg 7.2 or 7.3 under -CURRENT,
>>>> when Xorg 7.2 with 6.2-STABLE is Ok (I did not try with Xorg 7.3 on
>>>> -STABLE, but I'm quite sure I'll end to same result).
>>>> On a completly different machine (a more recent one with a 2.8GHz
>>>> Celeron), the problem could be less obvious cause of the machine speed
>>>> but I can notice the difference between 6.2-STABLE and 7-CURRENT with
>>>> any Xorg version.
>>>
>>> Can you give a dozen lines of 'vmstat 1' output while rendering this
>>> page in
>>> 7.0 and 6.2?
>>>
>>
>> I attached the logs while rendering a french newspaper page.
>
> Is this a SMP kernel on a UP machine? If so can you try without SMP in
> your config?
>
Without SMP and apic, the number of context switches is lower:
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr ad4 cd0 in sy cs us sy id
0 0 0 501656 89424 0 0 0 0 0 0 0 0 1266 3532 1511 8 7 86
0 0 0 501656 89424 0 0 0 0 0 0 0 0 1252 8127 964 11 6 83
1 0 0 501656 89424 0 0 0 0 0 0 0 0 1253 1514 973 2 7 92
3 0 0 501656 89424 2647 0 0 0 2662 0 6 0 1397 12460 2663 42 24 34
2 0 0 501656 89424 379 0 0 0 375 0 0 0 1307 16338 2528 81 17 2
4 0 0 501500 89424 5 0 0 0 0 0 0 0 1561 6544 1818 85 15 0
4 0 0 501300 89424 1693 0 0 0 1693 0 1 0 1507 9523 1780 86 14 0
3 0 0 501792 89424 876 0 0 0 873 0 3 0 1321 14872 1693 81 19 0
1 0 0 501580 89424 2674 0 0 0 2574 0 0 0 1305 10642 1690 88 12 0
2 0 0 501580 89424 876 0 0 0 866 0 0 0 1266 12783 2005 58 10 33
2 0 0 501580 89424 0 0 0 0 0 0 3 0 1291 1464 996 2 6 92
but still a slightly higher than on 6.X, but I'm still experiencing
slowdown of webpage rendering during compilation.
--
Marc
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