We're using the Memcache::setCompressThreshold() to compress values - but I don't have a good sense of the best way to tune the $threshold and $min_saving parameters. Does anyone have experience/insight about good values to use or a methodology for determining them? Obviously, we're willing to trade a reasonable amount of CPU cycles on our PHP servers for better network performance.
As far as workload, most of our values are PHP arrays for which compression should provide fair savings (no JPG images or anything like that).
