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David Goodwin

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Tag: memory

adventures with cgroups for resource control

What? Control Groups aka cgroups – see the docs . Resource control and monitoring. Some examples follow for throttling i/o speed(s) for a process control group (cgroup).

Published February 24, 2016
Categorized as linux, sysadmin Tagged blkio, cgroup, cgroups, docker, linux, lxc, memory, swap

PHP 5.4 + xcache -> PHP 5.6 + Zend OpCache memory usage

In relatively unscientific tests, it seems moving from PHP5.4 with xcache to PHP 5.6 with Zend’s OpCache can lead to approximately 50% memory reduction. (xcache was set to have a 64mb size, Zend OpCache is also using 64mb of memory).

Published June 17, 2015
Categorized as php Tagged memory, php, xcache

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