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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 You can have slow DNS. Consider to use local caching DNS recursor as source for proxy & users. 23.10.2016 18:42, Krishna Kulkarni пишет: > > Hi Antony, > Thanks for the reply. I have made changes in squid.conf as per your suggestion and have allocated 20 GB of Hard disk space. > Squid server at my location handles http/https requests for more than 500 hosts. But at peak hours squid usually performs very slow and browser takes 1-2 minutes just to serve google home page and more time than that for heavy web page. > I have verified network link utilization & found it consumes not more than 15 mb whereas link bandwidth is of 45mb but still squid serves web pages very slow to client hosts. > Any suggestions in squid configuration to overcome this issue would be highly appreciated. > > Thanks, > Krishna. > > On Oct 23, 2016 5:11 PM, <squid-users-request@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users-request@xxxxxxxxxxxxxxxxxxxxx>> wrote: > > Send squid-users mailing list submissions to > squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.squid-cache.org/listinfo/squid-users <http://lists.squid-cache.org/listinfo/squid-users> > or, via email, send a message with subject or body 'help' to > squid-users-request@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users-request@xxxxxxxxxxxxxxxxxxxxx> > > You can reach the person managing the list at > squid-users-owner@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users-owner@xxxxxxxxxxxxxxxxxxxxx> > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of squid-users digest..." > > > Today's Topics: > > 1. Slowness in Squid (Krishna Kulkarni) > 2. Re: Slowness in Squid (Antony Stone) > 3. external_acl_type problem (reinerotto) > 4. Re: Slowness in Squid (Yuri Voinov) > 5. Re: Slowness in Squid (Matus UHLAR - fantomas) > 6. Re: Slowness in Squid (Yuri Voinov) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 23 Oct 2016 09:06:22 +0530 > From: Krishna Kulkarni <krishna26kulkarni@xxxxxxxxx <mailto:krishna26kulkarni@xxxxxxxxx>> > To: squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > Subject: Slowness in Squid > Message-ID: > <CAN-hqth-kdQDYXTR=jDnbVoiNmEMpi71+Sx7waO=61s0keucDQ@xxxxxxxxxxxxxx <mailto:61s0keucDQ@xxxxxxxxxxxxxx>> > Content-Type: text/plain; charset="utf-8" > > Dear Team > I am new to squid.. I have installed squid 3.5 on CentOS 6.7. As a > configuration part, I have kept most of the things default. Please advice > on how to allocate cache memory of 20 GB to squid. I got to know that, more > cache memory would increase performance of squid.. > > Thanks, > Krishna > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/9ddd4442/attachment-0001.html <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/9ddd4442/attachment-0001.html>> > > ------------------------------ > > Message: 2 > Date: Sun, 23 Oct 2016 10:16:28 +0200 > From: Antony Stone <Antony.Stone@xxxxxxxxxxxxxxxxxxxx <mailto:Antony.Stone@xxxxxxxxxxxxxxxxxxxx>> > To: squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > Subject: Re: Slowness in Squid > Message-ID: <201610231016.28867.Antony.Stone@xxxxxxxxxxxxxxxxxxxx <mailto:201610231016.28867.Antony.Stone@xxxxxxxxxxxxxxxxxxxx>> > Content-Type: Text/Plain; charset="iso-8859-15" > > On Sunday 23 October 2016 at 05:36:22, Krishna Kulkarni wrote: > > > I am new to squid.. I have installed squid 3.5 on CentOS 6.7. As a > > configuration part, I have kept most of the things default. Please advice > > on how to allocate cache memory of 20 GB to squid. > > Do you mean cache memory, or disk cache? > > > If you mean memory (RAM) and you have enough of this in your system (eg: 32 > Gbytes or more), then find the section in squid.conf which starts with: > > # MEMORY CACHE OPTIONS > > And read about the tag "cache_mem". > > To set this value (normally 256 Mbytes) to 20 Gbytes, set: > > cache_mem 20 GB > > > If, on the other hand, you do not mean memory, but you mean disk cache, then > find the section in squid.conf with starts with: > > # TAG: cache_dir > > and read that section. > > Pay particular attention to the line which says: > > # cache_dir ufs Directory-Name Mbytes L1 L2 [options] > > And then later there is an example: > > # cache_dir ufs /var/spool/squid3 100 16 256 > > Uncomment that line and change the 100 (Megabytes) in that line to 20000 (for > 20 Gigabytes) and perhaps also adjust the 16 to something like 64 or even 256 > - for a large cache you don't want a few directories with lots of entries > each, so it's worthwhile creating lots of directories to keep the number of > files in each down. > > > I got to know that, more cache memory would increase performance of squid.. > > What do you mean by "performance"? > > > Antony. > > -- > Just when you think you're done, a cat floats by with buttered toast strapped > to its back. > > - Steve Krug, "Don't make me think" > > Please reply to the list; > please *don't* CC me. > > > ------------------------------ > > Message: 3 > Date: Sun, 23 Oct 2016 03:39:31 -0700 (PDT) > From: reinerotto <augustus_meyer@xxxxxxx <mailto:augustus_meyer@xxxxxxx>> > To: squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > Subject: external_acl_type problem > Message-ID: <1477219171447-4680203.post@xxxxxxxxxxxxx <mailto:1477219171447-4680203.post@xxxxxxxxxxxxx>> > Content-Type: text/plain; charset=us-ascii > > 1) > According to > http://www.squid-cache.org/Doc/config/external_acl_type/ <http://www.squid-cache.org/Doc/config/external_acl_type/> > > in squid.conf, this > > external_acl_type check_delay ttl=0 cache=0 %SRC /etc/squid/check_delay.sh > > should start 0 helpers immediately after squid (3.5.22) start-up. > However, I always see 5. > > 2) > I often see this: > Sat Oct 22 23:51:18 2016 user.alert syslog: The check_delay helpers are > crashing too rapidly, need help! > Sat Oct 22 23:51:18 2016 local4.notice squid[21677]: Squid Parent: (squid-1) > process 27685 exited with status 1 > > Still trying to trace down the problem, I notice, that in this case some > helpers still kept alive, although > I expect them to be killed, too, in case squid-1 exits. > > > I need to add, that I am running squid on an embedded system, cross-compiled > for MIPS. > So there _might_ be some assumptions made for "standard LINUX" squid, which > are not true in my case. > > > > > -- > View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/external-acl-type-problem-tp4680203.html <http://squid-web-proxy-cache.1019090.n4.nabble.com/external-acl-type-problem-tp4680203.html> > Sent from the Squid - Users mailing list archive at Nabble.com. > > > ------------------------------ > > Message: 4 > Date: Sun, 23 Oct 2016 17:15:53 +0600 > From: Yuri Voinov <yvoinov@xxxxxxxxx <mailto:yvoinov@xxxxxxxxx>> > To: squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > Subject: Re: Slowness in Squid > Message-ID: <ebf2c080-b508-9547-a9df-d7971df609a4@xxxxxxxxx <mailto:ebf2c080-b508-9547-a9df-d7971df609a4@xxxxxxxxx>> > Content-Type: text/plain; charset="utf-8" > > > Keep in mind - a huge in-memory cache does not always give the > acceleration. Moreover, in most cases you can get the opposite effect > expected. It is a common misconception - that the giant memory cache > will give a giant performance gain. > > > 23.10.2016 9:36, Krishna Kulkarni пишет: > > > Dear Team > > I am new to squid.. I have installed squid 3.5 on CentOS 6.7. As a > configuration part, I have kept most of the things default. Please > advice on how to allocate cache memory of 20 GB to squid. I got to know > that, more cache memory would increase performance of squid.. > > > Thanks, > > Krishna > > > > > _______________________________________________ > > squid-users mailing list > > squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > > http://lists.squid-cache.org/listinfo/squid-users <http://lists.squid-cache.org/listinfo/squid-users> > > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/607405d9/attachment-0001.html <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/607405d9/attachment-0001.html>> > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: 0x613DEC46.asc > Type: application/pgp-keys > Size: 2437 bytes > Desc: not available > URL: <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/607405d9/attachment-0001.key <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/607405d9/attachment-0001.key>> > > ------------------------------ > > Message: 5 > Date: Sun, 23 Oct 2016 13:37:04 +0200 > From: Matus UHLAR - fantomas <uhlar@xxxxxxxxxxx <mailto:uhlar@xxxxxxxxxxx>> > To: squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > Subject: Re: Slowness in Squid > Message-ID: <20161023113704.GA12924@xxxxxxxxxxx <mailto:20161023113704.GA12924@xxxxxxxxxxx>> > Content-Type: text/plain; charset=utf-8; format=flowed > > On 23.10.16 17:15, Yuri Voinov wrote: > >Keep in mind - a huge in-memory cache does not always give the > >acceleration. Moreover, in most cases you can get the opposite effect > >expected. It is a common misconception - that the giant memory cache > >will give a giant performance gain. > > doesn't that imply kind of effectiveness? > > >23.10.2016 9:36, Krishna Kulkarni пишет: > >> I am new to squid.. I have installed squid 3.5 on CentOS 6.7. As a > >configuration part, I have kept most of the things default. Please > >advice on how to allocate cache memory of 20 GB to squid. I got to know > >that, more cache memory would increase performance of squid.. > > -- > Matus UHLAR - fantomas, uhlar@xxxxxxxxxxx <mailto:uhlar@xxxxxxxxxxx> ; http://www.fantomas.sk/ > Warning: I wish NOT to receive e-mail advertising to this address. > Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu. > The only substitute for good manners is fast reflexes. > > > ------------------------------ > > Message: 6 > Date: Sun, 23 Oct 2016 17:40:46 +0600 > From: Yuri Voinov <yvoinov@xxxxxxxxx <mailto:yvoinov@xxxxxxxxx>> > To: squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > Subject: Re: Slowness in Squid > Message-ID: <790ee9e7-f646-d14a-1213-a3729e30d90f@xxxxxxxxx <mailto:790ee9e7-f646-d14a-1213-a3729e30d90f@xxxxxxxxx>> > Content-Type: text/plain; charset="utf-8" > > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > This effect is good known to all who have worked with relational > databases. In fact, it is typical in general for all caches except > purpose-built highly scalable systems. > > > 23.10.2016 17:37, Matus UHLAR - fantomas пишет: > > doesn't that imply kind of effectiveness? > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v2 > > iQEcBAEBCAAGBQJYDKG+AAoJENNXIZxhPexGv9IH/A+T/eimJHaIkzY4oyDjbM9Z > fiDZyJPKoQz3uEDCS1qu+xxm33aol+IXFfE6L9ksuTUDwhzVnfw+m1aeEKv0NbBR > ODUL6dUhHnSmKWQ4TjDG/nXaQHK7QQDy+uqeIdZe1P9WHdGJ0qNDKwtCV2mD9hHH > QHg9Ukx7ycYDNAxxBvFfieOIhRfemuh8L+Z7Ne7nrmE6yGW+UCZze1/HfipYdFHH > IAiMO87icjbdd//EcLvhupMAQIBvSBMdehHsri+eHS/hwId2aWGtE/eqRovi8ITe > pPS2xKRC4H1IpzuMMNy0xCGsZ4UZ/vVN8fL0OhMX+VSX48RRN0C2GA1giFcNUAM= > =wnN6 > -----END PGP SIGNATURE----- > > -------------- next part -------------- > A non-text attachment was scrubbed... > Name: 0x613DEC46.asc > Type: application/pgp-keys > Size: 2437 bytes > Desc: not available > URL: <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/327fc190/attachment.key <http://lists.squid-cache.org/pipermail/squid-users/attachments/20161023/327fc190/attachment.key>> > > ------------------------------ > > Subject: Digest Footer > > _______________________________________________ > squid-users mailing list > squid-users@xxxxxxxxxxxxxxxxxxxxx <mailto:squid-users@xxxxxxxxxxxxxxxxxxxxx> > http://lists.squid-cache.org/listinfo/squid-users <http://lists.squid-cache.org/listinfo/squid-users> > > > ------------------------------ > > End of squid-users Digest, Vol 26, Issue 82 > ******************************************* > > > > _______________________________________________ > squid-users mailing list > squid-users@xxxxxxxxxxxxxxxxxxxxx > http://lists.squid-cache.org/listinfo/squid-users -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQEcBAEBCAAGBQJYDLqcAAoJENNXIZxhPexGfR8IAISoTylwJrRlHtJtMzV8JDBe PTs0xLIUd6wtpmVmIfKy/rU1MhKzeShRuoWZ3YHVG7NurSZvYm0B9EMBweh8Xrly f4YUgwABCXzzy78UgJsmGLVPhRLlORDV7PQys+PAT2MHHL32l4geDUOfVWZ5gv6/ 2GEQhH5rYHWeHcVqUpsVyoYfHB3y13t9hdYWEg7k32ZDik8IIVbfV2q+uW0WQjVj FC4j6599louhwfVCqePJM3hQwycuEqRO8fD/oQwv1jr6x2+4Y71bjm4lbM0HiuKu byFlnHrhdtD6m5UkQgSzC+PhG2jho02G56IeP20E8HONhwJJLH5/pCrkIAhjmW8= =J44M -----END PGP SIGNATURE----- |
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