FYI performance of Squid 2.2 on Solaris 2.7 using Polygraph "datacomm-1"

I've been benchmarking Squid in the lab trying to find it's maximum
performance if not limited by disk I/O. So with Squid 2.2stable5 running
under Solaris 7 with a 256 MB cache_dir mounted on a tmpfs file system in swap
space (in RAM), here's what it could do with 2 different speed Sun Ultras
(Ultra 5 or Ultra 10) equipped with a total of 1 GB RAM (Polygraph using
roughly the "datacomm-1" benchmark, just didn't run it as long i.e. lower
goal):

270 MHz, peak SPECint95 rating 9.17, 13 KB object size: 100 responses/sec
440 MHz, peak SPECint95 rating 18.1, 13 KB object size: 190 responses/sec

So, with this OS, and if disk I/O is not the limiting factor (either because you have enough spindles or you're using a RAM-based file system), the most Squid 2.2stable5 can sustain is about 10 times the machines SPECint95 rating. I set cache_mem to 64 MB for these tests.

I also tried a few different size objects with Polygraph.
270 MHz, peak SPECint95 rating 9.17, 6 KB object size: 140 responses/sec
270 MHz, peak SPECint95 rating 9.17, 20 KB object size: 95 responses/sec

                   Peter Jenny
            Internet Engineering Services
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Received on Wed Dec 22 1999 - 14:47:20 MST