[CentOS] RE: CentOS5 running very slowly on a core 2 duo with 4 GB RAM

israel.garcia at cimex.com.cu israel.garcia at cimex.com.cu
Fri Aug 8 19:23:31 UTC 2008


israel.garcia at cimex.com.cu
<http://lists.centos.org/mailman/listinfo/centos>  wrote:
>> Hi, I've installed CentOS5.2 on an INTEL Core 2 Duo (Intel(R)
Core(TM)2
>> Duo CPU     E6550  @ 2.33GHz), 4 GB RAM (MemTotal:      4072176 kB)
and>
>> my system gets sevarel minutes to startup, specially on udev daemon.
>> Once the system is UP, every command I run gets 100% CPU and every is
>> very slowly at the point yum -y update never ends. The system
installed
>> by default this kernel 2.6.18-53.el5PAE. I would like to know what's
>> wrong with my server. Do I have to install another kernel? Can you
help
>> me?
 
>With 4G I'd install the x86_64 version. Not that I think that PAE is
the
>reason for this slow behaviour (last reporter who had that somewhere on
>bugs.centos.org had bad RAM), but ...
 
>Cheers,
> 
>Ralph
 
More details:
 
 
Dmesg output:
 
[root at netreporter-test ~]# dmesg |more
Linux version 2.6.18-92.1.10.el5PAE (mockbuild at builder16.centos.org)
(gcc version 4.1.2 20071124 (Red Hat 4.1.2-42)) #1 SMP Tu
e Aug 5 08:14:05 EDT 2008
BIOS-provided physical RAM map:
 BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
 BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
 BIOS-e820: 00000000000e0000 - 0000000000100000 (reserved)
 BIOS-e820: 0000000000100000 - 00000000ce1ad000 (usable)
 BIOS-e820: 00000000ce1ad000 - 00000000ce20d000 (ACPI NVS)
 BIOS-e820: 00000000ce20d000 - 00000000cf289000 (usable)
 BIOS-e820: 00000000cf289000 - 00000000cf28b000 (reserved)
 BIOS-e820: 00000000cf28b000 - 00000000cf38b000 (usable)
 BIOS-e820: 00000000cf38b000 - 00000000cf3e5000 (ACPI NVS)
 BIOS-e820: 00000000cf3e5000 - 00000000cf3ea000 (usable)
 BIOS-e820: 00000000cf3ea000 - 00000000cf3f3000 (ACPI data)
 BIOS-e820: 00000000cf3f3000 - 00000000cf3f4000 (usable)
 BIOS-e820: 00000000cf3f4000 - 00000000cf3ff000 (ACPI data)
 BIOS-e820: 00000000cf3ff000 - 00000000cf400000 (usable)
 BIOS-e820: 00000000cf400000 - 00000000d0000000 (reserved)
 BIOS-e820: 00000000f0000000 - 00000000f8000000 (reserved)
 BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
 BIOS-e820: 0000000100000000 - 000000012c000000 (usable)
3904MB HIGHMEM available.
896MB LOWMEM available.
found SMP MP-table at 000fe200
Memory for crash kernel (0x0 to 0x0) notwithin permissible range
disabling kdump
NX (Execute Disable) protection: active
On node 0 totalpages: 1228800
  DMA zone: 4096 pages, LIFO batch:0
  Normal zone: 225280 pages, LIFO batch:31
  HighMem zone: 999424 pages, LIFO batch:31
DMI 2.4 present.

 

 

 
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