Re: Help understanding slow down

[Phy Prabab]

Sorry for the late reply.   No this is a dual Xeon
3.06Ghz.  All runs are with the same hardware and same
make/build system.

How do I generate a profile of the system.  I have
alrady compiled profiling and have enabled the kernel.

Thanks,
Phy
--- Andrew Morton <akpm@xxxxxxxx> wrote:
> Phy Prabab <phyprabab@xxxxxxxxx> wrote:
> >
> > Okay, so ran the test with vmstat running.  I ran
> it
> >  capturing every 1 sec.  Here is an excert:
> 
> That was horridly wordwrapped.
> 
> 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
> 
> This is a single-CPU machine, yes?
> 
> Your application is spending most of the time in an
> explicit sleep of some
> form.  Suggest you run strace against it and see
> what it's up to.


	
		
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