[lkml]   [2003]   [Mar]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: percpu-2.5.63-bk5-1 (properly generated)
> There's a relatively large (12s/44s == 27%) difference between absolute
> timings on our machines, which suggests a large disturbance in the force.
> 2.5.63-bk5 virgin appears to get timings in the low 40's.

Did you actually read the previous email?
Same config file? Same tree? same compiler (gcc 2.95.4?)

>> Would be useful if you can grab a before and after profile, and see exactly
>> what it is that's getting thrashed that you're fixing (may just be everything).
>> From the profile posted it's the division in page_zone().

I think we're talking about different things:

1. Need to isolate what's causing the 6s improvement you're seeing.
Can you generate profiles & time output for before and after the patch,
and describe the test you're running (presumably make -j).

2. SDET degredation. I'll try the additional patch you sent out on that.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 13:33    [W:0.040 / U:2.412 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site