Re: Varnish performance tests
]] "Rebert Luc" | In our studies we have a project which consists in testing the | performance of Varnish in order to make a comparative with and without | the proxy cache. | Does anyone know which utilities to employ ? (knowing that the aim | is to justify our tests) http://www.web-cache.com/benchmarking.html has some pointers. I've had interesting numbers come out of polygraph. -- Tollef Fog Heen Redpill Linpro -- Changing the game! t: +47 21 54 41 73 ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Varnish performance tests
On Dec 8, 2008, at 9:03 AM, Per Buer wrote: > Rebert Luc wrote: >> Hello, >> >> In our studies we have a project which consists in testing the >> performance of Varnish in order to make a comparative with and >> without >> the proxy cache. >> Does anyone know which utilities to employ ? (knowing that the aim >> is to >> justify our tests) > > You could have a look at varnishreplay to "replay" earlier recorded > varnishlogs. If you also want to synthesize traffic you could also > check > out siege and curl-loader. > > If you have a high hitrate in your cache you'll most likely end up > benchmarking the tools rather then varnish. I think I measured siege > to > be ~3x slower then varnish. I used httperf with great success. However, it's only single- threaded, so you may want to put a wrapper around it to test request concurrencies > 1. --Michael ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: Varnish performance tests
Rebert Luc wrote: > Hello, > > In our studies we have a project which consists in testing the > performance of Varnish in order to make a comparative with and without > the proxy cache. > Does anyone know which utilities to employ ? (knowing that the aim is to > justify our tests) You could have a look at varnishreplay to "replay" earlier recorded varnishlogs. If you also want to synthesize traffic you could also check out siege and curl-loader. If you have a high hitrate in your cache you'll most likely end up benchmarking the tools rather then varnish. I think I measured siege to be ~3x slower then varnish. -- Per Buer - Leder Infrastruktur og Drift - Redpill Linpro Telefon: 21 54 41 21 - Mobil: 958 39 117 http://linpro.no/ | http://redpill.se/ ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
Re: How much of the ESI spec is implemented?
]] Kurt Mackey
First, sorry for taking ages to get back to you.
| So ESI looks interesting, but I can't quite figure out the extent to
| which Varnish supports it.
We just support the simple esi:include, ESI comments and esi:remove, not
anything more at the moment.
| For instance, the ESI expressions look ridiculously useful in
| conjunction with the include tag. Can you do things like this?
|
| http://example.com/users/$(COOKIE{username})/$(COOKIE{token})"/>
Yes, it'd be quite useful.
| I'm not good enough to completely understand the source, but it looks like
that example may not be possible.
|
| It would be awesome to see expression support and support for the
| choose/when/otherwise tags as well. Is that the type of thing that
| someone could sponsor for development?
I don't believe we will want to do choose/when/otherwise, but sponsoring
of includes based on cookies is something that would be interesting to
us. Feel free to get in touch with [EMAIL PROTECTED] about it.
--
Tollef Fog Heen
Redpill Linpro -- Changing the game!
t: +47 21 54 41 73
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Strange varnish behavior - not answering requests
Hi,
We're tired of squid and it's quirks and want to advance into the information
age with varnish.
I've been testing varnish the last couple of days and it has been behaving
perfectly until last night. When stresstesting the varnishserver it suddenly
stopped handling requests. Varnish returns to normal operation after a restart.
Symptom:
Accessing a page on the varnishsserver results in a timeout in the browser
I am able to telnet to the varnishserver on port 80 but a GET doesn't result in
anything ("hangs").
I am able to telnet to port 6082 and run commands:
[snip]
status
200 22
Child in state running
[/snip]
Varnishlog returns:
[snip]
0 CLI - Rd ping
0 CLI - Wr 0 200 PONG 1228307253 1.0
0 CLI - Rd ping
0 CLI - Wr 0 200 PONG 1228307256 1.0
0 CLI - Rd ping
[/snip]
Varnishncsa doesn't return anything.
I've verified with tcpdump that varnish ack's requests.
So "everything seems normal" even though clients get timeout. FF returned
"Connection Interrupted The document contains no data". If you need any
logs/configs please let me know :)
I haven't exhausted the search function for the mailinglist so sorry if this
topic has been an issue before.
I'm running varnish on an Ubuntu 8.04 distro.
Cheers and thanks for replies,
Johan Grasmo
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Varnish performance tests
Hello, In our studies we have a project which consists in testing the performance of Varnish in order to make a comparative with and without the proxy cache. Does anyone know which utilities to employ ? (knowing that the aim is to justify our tests) Thanks in advance. REBERT Luc & MORTREAU Alexandre ___ varnish-misc mailing list varnish-misc@projects.linpro.no http://projects.linpro.no/mailman/listinfo/varnish-misc
