Re: Help understanding slow down

Robert M. Stockmann
2004-05-24T18:37:14Z

On Sun, 23 May 2004, Phy Prabab wrote:

> Okay, here we go:
> ./configure;/usr/bin/time make
> make[1]: Leaving directory `/var/tmp/bison-1.875'
> 9.39user 1.18system 0:11.59elapsed 91%CPU
> (0avgtext+0avgdata 0maxresident)k
> 0inputs+0outputs (0major+147530minor)pagefaults 0swaps
>
> 0 0 0 8151040 19704 87396 0 0 0
> 148 1673 1230 3 6 90 1
> 0 0 0 8150912 19712 87456 0 0 0
> 0 2697 2553 10 13 78 0
> 0 0 0 8150712 19712 87388 0 0 4
> 0 3233 3404 15 19 66 0
> 1 0 0 8147512 19724 87716 0 0 276
> 0 2477 2671 23 15 60 2
> 1 0 0 8149944 19736 87840 0 0 132
> 0 2940 3048 17 17 65 1
> 1 1 0 8148144 19736 87840 0 0 0
> 32 2647 2466 22 16 62 1
> 1 0 0 8150176 19744 87832 0 0 0
> 212 2831 2837 19 17 63 0
> 1 0 0 8148704 19744 87832 0 0 12
> 0 2983 3051 18 18 63 0
> 1 0 0 8149984 19744 87832 0 0 0
> 0 3260 3632 20 22 58 0
> 1 0 0 8149792 19744 87832 0 0 0
> 0 3165 3366 19 22 59 0
> 0 1 0 8150240 19760 87952 0 0 108
> 36 2810 2795 16 17 64 3
> 1 0 0 8148768 19768 87944 0 0 12
> 208 2851 2775 18 15 65 1
> 1 0 0 8149152 19784 88472 0 0 576
> 200 2670 2681 16 15 64 5
> 1 0 0 8148960 19796 88596 0 0 80
> 0 3387 4263 10 20 71 0
> 1 0 0 8147864 19800 88728 0 0 0
> 0 3070 3834 23 16 60 0
> 0 1 0 8148440 19812 88988 0 0 0
> 468 3914 4592 7 18 73 1
> procs memory swap
> io system cpu
> r b swpd free buff cache si so bi
> bo in cs us sy id wa
> 1 0 0 8147352 19844 89228 0 0 120
> 300 3070 3900 15 17 65 4
> 1 0 0 8144600 19852 89288 0 0 0
> 104 1850 1008 35 8 57 1
> 1 0 0 8143576 19864 89412 0 0 0
> 0 1416 501 43 5 52 0
>
>
> A little faster than the result you published,
> however, it sheds no light for me. Any thing that
> seems to point out some issues?

Well you need to do this two times : using 2.6.7p1
and 2.4.21. and compare the results. Maybe compile a larger
gnu software package so the difference in speed is more clear.

Robert
>
> --- "Robert M. Stockmann" <stock@stokkie.net> wrote:
> > Hi
> >
> > > procs memory swap io system cpu
> > >
> > > r b swpd free buff cache si so bi bo in cs
> > us sy id wa
> > > 1 0 0 8153848 17000 82348 0 0 0 0 4568
> > 4028 6 16 78 0
> > > 0 1 0 8154168 17008 82340 0 0 0 160 4596
> > 4079 7 17 76 1
> > > 1 0 0 8153848 17008 82340 0 0 0 0 4511
> > 3998 7 16 76 0
> > > 1 0 0 8153912 17008 82340 0 0 0 0 4460
> > 3952 7 14 79 0
> > > 1 0 0 8153784 17016 82332 0 0 0 0 4437
> > 3962 7 16 77 0
> > > 1 0 0 8153528 17016 82332 0 0 0 0 4444
> > 3927 7 14 78 0
> > > 1 1 0 8153784 17024 82392 0 0 0 144 4399
> > 3895 7 15 77 1
> > > 0 0 0 8153592 17024 82392 0 0 0 0 4367
> > 3821 7 15 78 0
> > > 1 0 0 8153848 17024 82392 0 0 0 0 4393
> > 3926 6 16 78 0
> > > 1 0 0 8153528 17024 82460 0 0 0 0 4438
> > 3960 8 14 78 0
> > > 1 0 0 8154040 17024 82460 0 0 0 0 4415
> > 3912 6 15 78 0
> > > 1 1 0 8153720 17032 82452 0 0 0 140 4457
> > 3953 7 15 77 1
> > > 1 0 0 8153784 17032 82452 0 0 0 0 4437
> > 3889 7 14 79 0
> > > 0 0 0 8153784 17040 82444 0 0 0 0 4398
> > 3903 8 15 77 0
> > > 1 0 0 8153464 17040 82444 0 0 0 0 4398
> > 3902 7 14 79 0
> > > 0 0 0 8153528 17040 82444 0 0 0 0 4447
> > 3922 6 17 77 0
> > > 0 1 0 8153720 17052 82432 0 0 0 144 4490
> > 3960 6 16 77 1
> > > 0 0 0 8153656 17056 82428 0 0 0 0 4449
> > 3954 7 15 78 0
> >
> > FIELD DESCRIPTION FOR VM MODE
> > Procs
> > r: The number of processes waiting for run
> > time.
> > b: The number of processes in uninterruptible
> > sleep.
> >
> > During the 18 seconds of displayed stats, you have
> > 12 seconds in which
> > 1 process is waiting for run time. Which process is
> > that, and where is
> > it waiting for ?
> >
> > Is your custom excecutable compile project causing
> > this or does a simple
> > compile task display the same slowdowns? As a small
> > bench test with a source
> > we all can download, try to compile
> > bison-1.75.tar.bz2 :
> >
> > # ./configure ; time make
> > ...
> > make[1]: Leaving directory
> > `/home/stock/tmp/src/bison-1.75'
> > 37.33user 3.64system 0:40.66elapsed 100%CPU
> > (0avgtext+0avgdata 0maxresident)k
> > 0inputs+0outputs (121059major+64165minor)pagefaults
> > 0swaps
> >
> > regards,
> >
> > Robert
> > --
> > Robert M. Stockmann - RHCE
> > Network Engineer - UNIX/Linux Specialist
> > crashrecovery.org stock@stokkie.net
> >
> > -
> > 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/
>
>
>
>
> __________________________________
> Do you Yahoo!?
> Yahoo! Domains – Claim yours for only $14.70/year
> http://smallbusiness.promotions.yahoo.com/offer
>

--
Robert M. Stockmann - RHCE
Network Engineer - UNIX/Linux Specialist
crashrecovery.org stock@stokkie.net