Hi,
We have setup 2 LPARs (Logical Partitions) on IBM p5-550.
One for AIX 5.3, The 2nd one for the RHEL AS4.
The server has 4 CPU's and 8GB RAM. It has two 140GB hard disk.
The 2 LPAR's are configured with a virtual ethernet client and virtual
SCSI client.
We have created 2 volume groups and each volume group containing 2 logical
volumes. We have assiged 2 logical volumes to each virtual host.
The CPU and memory is divided as follows
VIO partition -->.5 (5 Virtual processors), 512MB RAM
AIX partition --> 1.7 (17 Virtual processors), 3.5GB RAM
RedHat AS4 partition -->1.7 (17 Virtual processors), 3.5GB RAM
Just see a sample of output of ping to another server in the network from
RHEL AS4.
[root@bangpcplin1 ~]# ping bangpcplin3
PING bangpcplin3.bea.com (172.22.43.47) 56(84) bytes of data.
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=0 ttl=64 time=
21.8 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=1 ttl=64 time=
9.05 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=2 ttl=64 time=
8.97 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=3 ttl=64 time=
10.0 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=4 ttl=64 time=
13.0 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=5 ttl=64 time=
11.0 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=6 ttl=64 time=
8.98 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=7 ttl=64 time=
6.60 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=8 ttl=64 time=
10.9 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=9 ttl=64 time=
9.98 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=10 ttl=64 time=
10.0 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=11 ttl=64 time=
7.92 ms
64 bytes from bangpcplin3.bea.com (172.22.43.47): icmp_seq=12 ttl=64 time=
9.98 ms
--- bangpcplin3.bea.com ping statistics ---
13 packets transmitted, 13 received, 0% packet loss, time 12088ms
rtt min/avg/max/mdev = 6.605/10.650/21.824/3.557 ms, pipe 2
[root@bangpcplin1 ~]#
Also see a sample output of "iostat 5"
[root@bangpcplin1 ~]# iostat 5
Linux 2.6.9-5.EL (bangpcplin1) 12/14/2005
avg-cpu: %user %nice %sys %iowait %idle
0.82 0.00 0.43 1.13 97.62
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 10.61 140.42 63.16 142819579 64242894
sdb 1.83 35.94 25.10 36551596 25528376
avg-cpu: %user %nice %sys %iowait %idle
0.03 0.00 2.69 3.08 94.20
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 102.19 1011.95 309.16 5080 1552
sdb 36.25 290.04 0.00 1456 0
avg-cpu: %user %nice %sys %iowait %idle
0.12 0.00 2.78 4.01 93.09
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 92.79 1463.73 1.60 7304 8
sdb 29.86 235.67 4.81 1176 24
avg-cpu: %user %nice %sys %iowait %idle
0.02 0.00 2.60 3.88 93.50
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 128.80 2056.00 0.00 10280 0
sdb 0.40 0.00 4.80 0 24
avg-cpu: %user %nice %sys %iowait %idle
0.04 0.00 2.79 3.35 93.83
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 162.28 1534.53 621.16 7688 3112
sdb 0.00 0.00 0.00 0 0
Thanks & Regards,
-GnanaShekar-
On 12/14/05, Smith, Albert <Albert.Smith@xxxxxxxxxxxxxxxxx> wrote:
>
> Without knowing more about the configuration of your system and of the
> application there is very little go on. Can you provide more details?
>
> Albert Smith
> Sr. Unix Systems Administrator
> HPCSA, RHCT
> Genex Services
> 440 E. Swedesford Rd.
> Wayne, PA 19087
> albert.smith@xxxxxxxxxxxxxxxxx
> (610) 964-5154
>
>
>
> > -----Original Message-----
> > From: redhat-list-bounces@xxxxxxxxxx
> > [mailto:redhat-list-bounces@xxxxxxxxxx] On Behalf Of unix syzadmin
> > Sent: Tuesday, December 13, 2005 8:54 PM
> > To: redhat-list@xxxxxxxxxx
> > Subject: linux server slow.
> >
> > Hi,
> >
> > The users in my team are running tests for weblogic on linux
> > (RHEL AS4). We generally run test for weblogic on different
> > operating system and certify it.
> > They have complained that the linux server is slow. A test
> > that usually would take 30 mins is taking about 5 hours.
> > They have not faced this kind of slowness with any other
> > server (solaris, aix & hp-unix), even the earlier servers
> > that were running linux.
> >
> > I am new to troubleshooting performance problems. Please suggest.
> >
> > Thanks & Regards,
> > -GnanaShekar-
> > --
> > redhat-list mailing list
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> > https://www.redhat.com/mailman/listinfo/redhat-list
> >
> >
>
>
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