Web access very slow

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brian.schnautz
Posts: 15
Joined: Wed Oct 01, 2008 11:14 am

Web access very slow

Postby brian.schnautz » Wed Dec 30, 2009 1:17 pm

Hello,
I'm wondering if I need to tweak something in my scalix server to get SWA to run faster. Just to let you know the speed of SWA...
1. To initially load SWA in the morning when I come in to work takes about 2-3 minutes
2. To load any folder such as drafts, sent items etc takes about 30 seconds even if the folder only has a single object
3. We only have 3 Outlook users and 3 SWA users!

All in all I really like scalix.. We've been using the server for over a year and it's very solid.. I hardly ever have to touch it. Once in a blue moon I'll need to go in and 'service scalix restart'. up until this last reboot I had over 6 month uptime.
Here are some stats:

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  Scalix Web Access
Version 11.4.1.11592
Platform Version 11.4.1.2101
Server Version 11.4.1.11929


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[root@mail ~]# uname -a
Linux <myserverhostname> 2.6.18-92.el5 #1 SMP Tue Jun 10 18:49:47 EDT 2008 i686 athlon i386 GNU/Linux


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top - 11:03:02 up  1:15,  1 user,  load average: 0.07, 0.08, 0.08
Tasks: 200 total,   1 running, 199 sleeping,   0 stopped,   0 zombie
Cpu(s):  5.7%us,  1.2%sy,  0.1%ni, 89.2%id,  3.9%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   2074448k total,  2016152k used,    58296k free,    29400k buffers
Swap:  4096564k total,        8k used,  4096556k free,  1347976k cached


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[root@mail ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2              19G  3.0G   16G  17% /
/dev/sdb1             226G  116G   99G  54% /var
/dev/sda1              99M   11M   83M  12% /boot
tmpfs                1013M     0 1013M   0% /dev/shm


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[root@mail ~]# iostat -x
Linux 2.6.18-92.el5 (myserverhostname)   12/30/2009

avg-cpu:  %user   %nice %system %iowait  %steal   %idle
           5.64    0.08    1.21    3.74    0.00   89.33

Device:         rrqm/s   wrqm/s   r/s   w/s   rsec/s   wsec/s avgrq-sz avgqu-sz   await  svctm  %util
sda               1.56     5.74  1.86  1.01   105.21    54.01    55.43     0.02    8.54   2.84   0.82
sdb               2.92    20.65 19.70  6.39  1175.33   216.55    53.35     0.31   11.85   2.87   7.49


I bumped up the tomcat memory allocation based on what I read in some forums and rebooted.. still didn't seem to help much

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[root@mail ~]# cat /etc/opt/scalix-tomcat/scalix-tomcat.conf
#
# Configuration file for Scalix Tomcat
#

# The directory where Java is installed:
JAVA_HOME="/usr/java/jre1.5.0_13"

# Additional arguments to be passed to Java:
JAVA_OPTS="-server -Djava.net.preferIPv4Stack=true -Xms1024m -Xmx1024m"

# Maximum number of file descriptors
ULIMIT_NUM_FILES="10000"

brian.schnautz
Posts: 15
Joined: Wed Oct 01, 2008 11:14 am

Re: Web access very slow

Postby brian.schnautz » Thu Dec 31, 2009 1:56 pm

Wow! I just updated to the latest version 'Server Version 11.4.5.13150'. It fixed everything apparently. After upgrading, didn't notice much difference. So I decided to reboot the box. After rebooting, I loaded up SWA. Huuuuge improvement from 11.4.2. SWA loaded in less than 15 sec (loads in a few seconds now since initial cache) I can load any folder now in seconds... even my 'sent items' with 3400 messages! Now that is unbelievable!...

Good job Scalix Devs!

Sincerely,
Brian

RSisco
Posts: 212
Joined: Thu Jul 03, 2008 2:44 pm
Location: Springfield, MO
Contact:

Re: Web access very slow

Postby RSisco » Mon Jan 04, 2010 10:27 am

I'm glad to see that I'm not the only one that saw a marked improvement in performance. I have told everyone I know that is using Scalix to upgrade to 11.4.5 and SWA will smoke compared to previous versions. Thanks for letting us know.

Richard
I have officially quit using Scalix, but continue to visit the forums
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Scalix Server 11.4.6.13676
Scalix Connect 11.4.6.9214
SWA 11.4.6.12377
Outlook 2007
CentOS 5.3


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