On 05/28/2013 08:19 PM, Nathan Hoad wrote: > On Wed, May 29, 2013 at 1:56 AM, Alex Rousskov wrote: >> Memory leaks increase memory usage over time. Does that happen in your >> environment? If you do not know, you may want to start logging Squid >> memory usage every hour or so. > I am happy to start doing this, but given that memory usage would > increase over time through general use anyway, I'm unsure how I could > differentiate between expected memory usage increases and a memory > leak. In a steady state, memory usage should not "increase over time through general use". A steady state includes such preconditions as * no memory pools or sufficient traffic to fill memory pools * no caching or sufficient traffic to fill all caches * steady peak loads (as opposed to getting more and more load over time) Sure, memory usage will fluctuate with load, but the overall trend in a steady state should not be "up", it should be "flat". In other words, there will always be memory usage peaks and valleys but neither should be increasing with time in a steady state. If they do, there is a leak somewhere. Cheers, Alex.
