Kernel 2.6.5-1.358smp

[Ilia Dulgerov]

Hey dude, upgrade your kernel there is  za SMP related bug (and a lot of 
other bug fix exist)  use 2.4.22-1.2188smp or better 2.4.22-1.2193smp if 
your ACPI is not enabled try with 2.4.26!
BTW RedHat kernel for 3.0  has more patches for SMP and more memory and 
generaly for enterprise systems

raffaele.ronchi at libero.it wrote:

>Hello all,
>I have installed Fedora Core2 (Kernel 2.6.5-1.358smp) on a system with Xeon MP processors. I ran the same program (multithreaded) on this system and compared the results Vs. what obtained on the same hardware running RH Advanced Server 3.0 (Kernel 2.4.21-9.ELsmp).
>
>Follows sar output:
>
>Linux 2.4.21-9.ELsmp (RH system) 	06/17/2004
>
>05:00:00 PM       CPU     %user     %nice   %system     %idle
>05:02:42 PM       all      3.82      0.00      1.20     94.98
>05:02:47 PM       all      3.36      0.00      1.45     95.19
>05:02:52 PM       all      3.26      0.00      1.40     95.34
>05:02:57 PM       all      3.01      0.00      1.20     95.79
>05:03:02 PM       all      3.51      0.00      1.60     94.88
>05:03:07 PM       all      3.11      0.00      1.76     95.13
>05:03:12 PM       all      3.30      0.00      1.55     95.15
>
>---------------------------------------------------------------------------------------
>Linux 2.6.5-1.358smp (Fedora Core2 system) 	06/17/2004
>
>04:32:52 PM       CPU     %user     %nice   %system   %iowait     %idle
>04:35:26 PM       all      5.05      0.00      6.85      0.20     87.89
>04:35:31 PM       all      5.00      0.00      6.70      0.10     88.21
>04:35:36 PM       all      4.70      0.00      7.10      0.20     88.01
>04:35:41 PM       all      4.90      0.00      6.75      0.20     88.16
>04:35:46 PM       all      5.10      0.00      6.50      0.15     88.24
>04:35:51 PM       all      4.75      0.00      6.95      0.20     88.10
>04:35:56 PM       all      5.74      0.00      8.04      0.20     86.01
>
>Both system time and user time are much higher on Fedora.
>Is it something you have already seen happening, or might just be related to kernel configuration ?
>
>Thanks to everybody will reply. In case I can provide more details/mesurements.
>One interesting thing is that the program is running even slower on Fedora.
>
>Regards
>
>Raffaele
>
>
>  
>