Messages in this thread | | | Date | Wed, 9 Jun 2004 12:16:56 -0700 | Subject | Re: slow down in 2.6 vs 2.4 | From | Clint Byrum <> |
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On Tuesday, June 8, 2004, at 08:35 PM, Phy Prabab wrote:
> Hello! > > Over the last two days I have been struggling with > understanding why 2.6.x kernel is slower than > 2.4.21/23 kernels. I think I have a test case which > demostrates this issue. >
Phy, you and I have corresponded off list. I think we are experiencing the same thing...
> > 2.4.21: > 323.68user 56.07system 6:35.77elapsed 95%CPU > (0avgtext+0avgdata 0maxresident)k > 0inputs+0outputs (3138783major+3818347minor)pagefaults > 0swaps
Is there any way to get similar numbers system wide on 2.4? This exists for 2.6.x, and the latest sysstat shows it with sar -B, but as the sar manpage states, the fault/s numbers are not available on 2.4. :(
Stats for a recent period:
Linux 2.4.23 (xxx) 06/09/2004
11:40:00 AM pgpgin/s pgpgout/s fault/s majflt/s 11:50:00 AM 17.52 72.34 0.00 0.00 12:00:00 PM 20.93 65.06 0.00 0.00 Average: 19.22 68.70 0.00 0.00
Linux 2.6.6 (yyy) 06/09/04
11:40:00 pgpgin/s pgpgout/s fault/s majflt/s 11:50:00 70.68 81.13 13756.37 0.02 12:00:00 89.22 81.82 11598.21 0.03 Average: 79.95 81.48 12676.43 0.03
Thats from two different boxes.. see my earlier message this week for an explanation of the setup.
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