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Date: Sat, 16 Feb 2013 11:55:41 -0800
Message-ID: <CAN0CFw3A2Ym7Re8SABZx8vVuvVpET8HOi17V5_jdGSXxka7qrg@mail.gmail.com>
Subject: Re: [gentoo-user] {OT} LWP::UserAgent slows website
From: Grant <emailgrant@gmail.com>
To: Gentoo mailing list <gentoo-user@lists.gentoo.org>
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>> Now that's a new (and important!) piece of information. Your server
>> runs slow for 10 *minutes* after your script has made its request?
>>
>> To me, that indicates that important data wound up getting swapped to
>> disk on the server, and the slow behavior reported by other users is
>> the result of that data being swapped back in on-demand.
>>
>> That also indicates that your script's requests (and, possibly,
>> request pattern) cause some process in the server to allocate far more
>> memory than usual, which is why the server is swapping things to disk.
OK, thank you for the explanation. That does make sense.
> I agree. My rule of thumb was always that I must prevent Apache swapping
> at all costs as the performance impact is horrific.
>
> It doesn't have to mean installing more RAM (which is quick, easy, cheap
> and often rather effective), sensible optimizations can work wonders
> too, as can nginx as a proxy in front of Apache.
I've been using net-mail/up-imapproxy but the initscript has issues.
Is nginx good for IMAP too?
- Grant