Whoa, thanks guys for all this feedback! Catching up... > 1. What is the link speed of the slowest network connection between the > RC server and the IMAP server? What is the round trip packet time > between the two, i.e. ping, and how many hops, i.e. traceroute?
======================== *snip* ======================== PING imap.ua.ac.be (143.169.245.58): 56 data bytes 64 bytes from 143.169.245.58: icmp_seq=0 ttl=124 time=1.848 ms 64 bytes from 143.169.245.58: icmp_seq=1 ttl=124 time=2.053 ms 64 bytes from 143.169.245.58: icmp_seq=2 ttl=124 time=1.598 ms 64 bytes from 143.169.245.58: icmp_seq=3 ttl=124 time=1.622 ms 64 bytes from 143.169.245.58: icmp_seq=4 ttl=124 time=1.893 ms [...] ======================== *snap* ======================== ======================== *snip* ======================== traceroute to imap.ua.ac.be (143.169.245.58), 64 hops max, 52 byte packets 1 pcfw1 (143.129.75.14) 0.655 ms 0.695 ms 0.472 ms 2 cmi070252 (143.129.70.252) 1.968 ms 1.756 ms 1.710 ms 3 192.168.141.252 (192.168.141.252) 0.971 ms 1.205 ms 1.216 ms 4 143.169.251.100 (143.169.251.100) 1.725 ms 1.471 ms 1.217 ms 5 * * * [...] ======================== *snap* ======================== > 2. Do you have imapproxy installed on the RC server? Never heard of that. > 3. What web server are you using? > 4. What version of PHP? > 5. What version of FreeBSD? http://win.ua.ac.be/~nschloe/other/phpinfo.php > 6. What are the hardware specs (CPU speed/mem size) of both the RC > server and the IMAP server? RC server: * 4 cores, CPU: Intel(R) Xeon(R) CPU E5405 @ 2.00GHz (1999.78-MHz K8-class CPU) * 8 GB mem I'd like to benchmark PHP applications in general, or have some sort of general web application benchmark anyway. Suggestions? I have no idea about the hardware specs of the IMAP server. > 7. What IMAP server daemon/version is running on the IMAP server? It must be one of those Microsoft Server installations -- no idea what version though. Remote benchmark possible? Cheers, Nico On Tue, Sep 14, 2010 at 2:50 PM, Stan Hoeppner <s...@hardwarefreak.com> wrote: > Nico Schlömer put forth on 9/14/2010 1:25 PM: >> Dear all, >> >> I'm running a RoundCube installation on a FreeBSD server here, and >> it's fed by a *remote IMAP server. As recommended in the settings, I >> set >> >> $rcmail_config['enable_caching'] = true; >> >> but despite this, accessing the mails is *dead slow. It takes at least >> 5 seconds to access any given folder, and this doesn't seem to change >> after the folder has been accessed once (and hence cached?). This >> makes using RoundCube quite inconvenient. >> I'm quite oblivious as to what could cause such a slow performance, >> but I'm willing to test and try. >> Hints, anyone? > > 1. What is the link speed of the slowest network connection between the > RC server and the IMAP server? What is the round trip packet time > between the two, i.e. ping, and how many hops, i.e. traceroute? > > 2. Do you have imapproxy installed on the RC server? > > 3. What web server are you using? > > 4. What version of PHP? > > 5. What version of FreeBSD? > > 6. What are the hardware specs (CPU speed/mem size) of both the RC > server and the IMAP server? > > 7. What IMAP server daemon/version is running on the IMAP server? > > > -- > Stan > _______________________________________________ > List info: http://lists.roundcube.net/users/ > BT/500a1e2e > _______________________________________________ List info: http://lists.roundcube.net/users/ BT/8f4f07cd
