Messages in this thread | | | Date | Sun, 02 Mar 2003 13:58:58 -0800 | From | "Martin J. Bligh" <> | Subject | Re: 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.
M.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |