Re: interesting update on phar performance

From:	Ilia Alshanetsky	Date:	Fri, 20 Jun 2008 13:56:07 +0000
Subject:	Re: interesting update on phar performance
References:	1	Groups:	php.internals
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Greg, Congrats, those are rather impressive results. On 20-Jun-08, at 3:12 AM, Gregory Beaver wrote:

Hi all, I decided to run my standard phpMyAdmin test without APC enabled and got startling results from siege:
    Date & Time,  Trans,  Elap Time,  Data Trans,  Resp Time,  Trans
Rate,  Throughput,  Concurrent,    OKAY,   Failed
2008-06-20 02:02:35,    915,      60.01,           1,       0.98,
15.25,        0.02,       14.88,     915,       0 <-- phpMyAdmin on disk
2008-06-20 02:05:04,    911,      60.04,           1,       0.98,
15.17,        0.02,       14.86,     911,       0 <-- phpMyAdmin in phar
with phar.cache_list That's right - they are identical in performance. With APC, there is a performance difference (I'm not sure why, to be honest, this one is really hard to profile):
    Date & Time,  Trans,  Elap Time,  Data Trans,  Resp Time,  Trans
Rate,  Throughput,  Concurrent,    OKAY,   Failed
2008-06-20 01:34:00,   2735,      59.72,           5,       0.33,
45.80,        0.08,       14.95,    2735,       0 <-- phpMyAdmin on disk
2008-06-20 01:36:11,   2409,      60.14,           5,       0.37,
40.06,        0.08,       14.95,    2409,       0 <-- phpMyAdmin in phar
with phar.cache_list However, the difference is negligible. Thanks to Gopal for the mini-tutorial on using copy-on-write to implement phar.cache_list, and kcachegrind for finding the obvious bottlenecks. Greg --PHP Internals - PHP Runtime Development Mailing List To unsubscribe, visit: http://www.php.net/unsub.php

Ilia Alshanetsky