Search squid archive

Re: very slow browsing and page is not displaed properly

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



goody goody wrote:
Hi,

Squid GURUs, Your response is required, please.

Regards,
.Goody.


----- Original Message ----
From: goody goody <thinkodd@xxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxx
Sent: Fri, May 21, 2010 1:52:23 AM
Subject: Re:  very slow browsing and page is not displaed properly

Dear Members,

In addition to below information, I have added some more info regarding machine hardware and platform.
RAM = 4 GB
Processors = 4 HDDs SATA having implemented RAID-5

Running on VMWARE ESXi 3.5.

Should you need any info, pls let me know.

Waiting for your expert opinion, please.

http://wiki.squid-cache.org/SquidFaq/RAID

45GB cache on RAID-5. ouch.

If you are really absolutely forced to use RAID at all, go for RAID-1.

For best performance go with JBOD and do away with half the physical level IO.

I'd also recommend an OS other than *BSD for AUFS. There are some write problems on BSD that apparently slow it down.



----- Original Message ----
From: goody goody <thinkodd@xxxxxxxxx>
To: squid-users@xxxxxxxxxxxxxxx
Sent: Thu, May 20, 2010 4:31:21 PM
Subject:  very slow browsing and page is not displaed properly

Hi,

Version information and some statistics collected by me are as below. At times, my users complain the browsing becomes deadly slow and we page like yahoo, after much delay is displayed scattered and pictures are not visible rather "X" sign is displayed and after few times refresh screen becomes better.

proxy-br# uname -a
FreeBSD proxy-br 0-RELEASE FreeBSD 8.0-RELEASE #0: Sat Nov 21 15:48:17 UTC 2009    root@xxxxxxxxxxxxxxxxxxxxxxx:/usr/obj/usr/src/sys/GENERIC  i386

--------------------------------------------------------------------------------------------------------------------

proxy-br# /usr/local/squid27/sbin/squid -v
Squid Cache: Version 2.7.STABLE9
configure options: '--prefix=/usr/local/squid27' '--enable-async-io' '-enable-storeio=aufs,coss' '--enable-removal-policies=heap,lru' '--enable-snmp' '--with-openssl=/opt/ssl' '--enable-wccp'

--------------------------------------------------------------------------------------------------------------------

proxy-br# iostat -c 5 -w 3
      tty            da0            pass0            cpu
tin  tout  KB/t tps  MB/s  KB/t tps  MB/s  us ni sy in id
  0  138 13.88  2  0.03  0.00  0  0.00  4  0  1  0 95
  0  140 11.00  1  0.01  0.00  0  0.00  11  0  5  1 83
  0  133 11.00  1  0.01  0.00  0  0.00  16  0  5  1 78
  0    86 16.00  0  0.01  0.00  0  0.00  13  0  4  1 82
  0  132  3.07  5  0.01  0.00  0  0.00  14  0  4  1 80

--------------------------------------------------------------------------------------------------------------------
proxy-br# vmstat
procs      memory      page                    disks    faults        cpu
r b w    avm    fre  flt  re  pi  po    fr  sr da0 pa0  in  sy  cs us sy id
1 0 0    924M  154M    20  0  0  0    6  1  0  0  189 1178 1366  4  1 95

--------------------------------------------------------------------------------------------------------------------
proxy-br# systat

                    /0  /1  /2  /3  /4  /5  /6  /7  /8  /9  /10
    Load Average  ||

                    /0%  /10  /20  /30  /40  /50  /60  /70  /80  /90  /100
root          idle XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
root          idle XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
squid        squid XXXXXXXXXXXXXXXXX
root        kernel X


my squid.conf is as below
--------------------------------------------------------------------------------------------------------------------
http_port 3128

hierarchy_stoplist cgi-bin ?
acl QUERY urlpath_regex cgi-bin \?
no_cache deny QUERY

"no_cache" is dead. Drop the "no_" part of it.

Also the QUERY acl is now deprecated. You can drop those above lines entirely and add a refresh_pattern instead:

 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0

(needs to go just about the "refresh_pattern . "  line).

cache_mem 256 MB
visible_hostname pxy
#negative_ttl 0

acl PURGE method PURGE
acl localhost src 127.0.0.1
http_access allow PURGE localhost
http_access deny PURGE


cache_replacement_policy heap LFUDA
memory_replacement_policy heap GDSF

cache_dir aufs /cache 45000 16 256

cache_store_log /dev/null #/var/log/squid27/store.log

Drop the line above. It's both broken syntax (there are no comments allowed at the end), and unused as the next line below erases it.

cache_store_log none
cache_swap_low 80
cache_swap_high 90
cache_log /var/log/squid27/cache.log
cache_access_log /var/log/squid27/access.log

half_closed_clients off


...
...acl...
....
.....

#always_direct allow myiplist
cache_mgr xxxx@xxxxxxxx
cache_effective_user squid
cache_effective_group squid
logfile_rotate 0
buffered_logs on
nonhierarchical_direct off
prefer_direct off
ie_refresh on
ftp_list_width 32
ftp_passive on
ftp_sanitycheck on
ftp_telnet_protocol on


emulate_httpd_log on

Use the "common" log format on each access_log line instead of this deprecated option.

ie.  cache_access_log /var/log/squid27/access.log common


Amos
--
Please be using
  Current Stable Squid 2.7.STABLE9 or 3.1.3

[Index of Archives]     [Linux Audio Users]     [Samba]     [Big List of Linux Books]     [Linux USB]     [Yosemite News]

  Powered by Linux