Re: mod_perl speed difference between Fedora Core 1 and Fedora Core 3

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On Thu, 6 Jan 2005 12:40:01 -0600, Frank Wiles <frank@xxxxx.xxx> wrote:
> On Thu, 6 Jan 2005 18:15:27 +0000
> Alex Greg <alex.greg@xxxxx.xxx> wrote:
> 
> > Hi,
> >
> >
> > Recently I've upgraded one of our mod_perl servers to Fedora Core 3
> > (the others are all running Fedora Core 1).
> >
> >
> > What I've found is that the Fedora Core 3 machine is consistently
> > slower to respond than the Fedora Core 1 machines:
> 
>   While I agree recompling Perl will help, you might also look into
>   whether or not SELinux is slowing you down.

Hi,


I disbled SELinux when I installed the machines:


SELinux:  Initializing.
SELinux:  Starting in permissive mode
selinux_register_security:  Registering secondary module capability
SELinux:  Registering netfilter hooks
SELinux:  Disabled at runtime.
SELinux:  Unregistering netfilter hooks

>   Also, you might try
>   disabling IPv6 on the Core 3 boxes as I've found this can improve
>   the network performance:

I've just done this, and it hasn't had any affect.

>   I would also suggest double checking your config to make sure the
>   Core 3 boxes aren't running any unnecessary services that your
>   Core 1 boxes aren't running.

I've been doing this as part of the standard install process -
removing all unnecessary packages and services. The only network
service running is SSH - this is the same as on the FC1 boxes.
chkconfig --list on the FC3 box is as follows:

[root@web4 ~]# chkconfig --list
crond           0:off   1:off   2:on    3:on    4:on    5:on    6:off
smartd          0:off   1:off   2:on    3:on    4:on    5:on    6:off
irqbalance      0:off   1:off   2:off   3:on    4:on    5:on    6:off
atd             0:off   1:off   2:off   3:on    4:on    5:on    6:off
netfs           0:off   1:off   2:off   3:on    4:on    5:on    6:off
sysstat         0:off   1:on    2:on    3:on    4:on    5:on    6:off
acpid           0:off   1:off   2:off   3:on    4:on    5:on    6:off
saslauthd       0:off   1:off   2:off   3:off   4:off   5:off   6:off
yum             0:off   1:off   2:off   3:off   4:off   5:off   6:off
cpuspeed        0:off   1:on    2:on    3:on    4:on    5:on    6:off
network         0:off   1:off   2:on    3:on    4:on    5:on    6:off
sshd            0:off   1:off   2:on    3:on    4:on    5:on    6:off
iptables        0:off   1:off   2:on    3:on    4:on    5:on    6:off
haldaemon       0:off   1:off   2:off   3:on    4:on    5:on    6:off
netplugd        0:off   1:off   2:off   3:off   4:off   5:off   6:off
readahead       0:off   1:off   2:off   3:off   4:off   5:on    6:off
rhnsd           0:off   1:off   2:off   3:on    4:on    5:on    6:off
microcode_ctl   0:off   1:off   2:off   3:off   4:off   5:off   6:off
gpm             0:off   1:off   2:on    3:on    4:on    5:on    6:off
readahead_early 0:off   1:off   2:off   3:off   4:off   5:on    6:off
messagebus      0:off   1:off   2:off   3:on    4:on    5:on    6:off
kudzu           0:off   1:off   2:off   3:on    4:on    5:on    6:off
syslog          0:off   1:off   2:on    3:on    4:on    5:on    6:off
ntpd            0:off   1:off   2:off   3:off   4:off   5:off   6:off
autofs          0:off   1:off   2:off   3:on    4:on    5:on    6:off
psacct          0:off   1:off   2:off   3:off   4:off   5:off   6:off
[root@web4 ~]#


Any further advice would be appreciated, before I take the next step
and compile my own Perl.


Regards,


-- Alex