Re: Help understanding slow down

[Phy Prabab <phyprabab@yahoo.com>]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset=us-ascii, Size: 2053 bytes --]

Just for more clarification, here is a perfect
example:

2.6.7-p1:
24.86user 51.77system 2:58.87elapsed 42%CPU
(0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (13major+7591686minor)pagefaults
0swaps

2.4.21:
28.68user 34.98system 1:12.34elapsed 87%CPU
(0avgtext+0avgdata 0maxresident)k
0inputs+0outputs (5691267major+1130523minor)pagefaults
0swaps


Both runs on the same machine with the same process
(making headers).

Could someone give me some pointers/directions on
where to look.

Thank you for your time.
Phy



--- Phy Prabab <phyprabab@yahoo.com> wrote:
> Hello,
> 
> I need some help understanding what is at issue with
> the extreme lsow down in build times for a custom
> executable on different kernel versions.  The
> difference is pretty huge:
> 
> RH 2.4.20-13-7 : ~1m.10s
> 2.4.22         : ~1m.40s
> 2.4.26         : ~2m.15s
> 2.6.1          : ~3m.40s
> 2.6.2          : ~4m.00s
> 2.6.3          : ~4m.00s
> 2.6.6          : ~3m.15s
> 2.6.6-mm4      : ~2m.10s
> 2.6.6-mm5      : ~2m.50s
> 2.6.7-p1       : ~2m.80s
> (ran five times on every kernel to get approximate
> time listed)
> 
> The question is, how can I get the newer kernels to
> scream like the older kernels?
> 
> I have moved all files in question to the local disk
> to rule out network issues (though the 2.6.x kernels
> are faster at net access).  I have run the make
> command in debug mode and find no differnce betHz
> w/8G
> RAM.
> 
> Thank you for your assistance.
> Phy
> 
> 
> 
> 	
> 		
> __________________________________
> Do you Yahoo!?
> Yahoo! Domains – Claim yours for only $14.70/year
> http://smallbusiness.promotions.yahoo.com/offer 
> -
> 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