Re: [squid-users] Re: [SQU] Squid giving page faults

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>i have go through a lot of document and spent a lot of time browsing to
>find the truth about Page faults with physical i/o: but still could not
>find the solid answer and solution and all this very confusing.

I assume you're looking in Cache Manager's "General Runtime Information"
screen. The "Page faults with physical i/o" statistic is the number
of times Squid looked for a requested object in memory, didn't find
it, and had to load the object from disk.

Divide the number of page faults by the "Number of HTTP requests
received" statistic, then multiply by 100 to get a percentage. Let
us know what this percentage is - I honestly couldn't say at what
level one should be concerned.

Disk is slower than memory, so if the number is really high then
it can impact performance. The solution is to allocate more memory
for Squid to hold cache objects in (the cache_mem parameter in squid.
conf).
Received on Wed Jul 30 2003 - 20:20:29 MDT