BENCHMARKING_SQUID_USING_LINUX_AND_SYSSTAT

by jhamm 10 months ago

GNU/Linux • xterm-256color • bash 152 views

PROCEDURE BENCHMARKING SQUID PERFORMANCE

1 RUN A BENCHMARK TEST
To evaluate the caching efficiency, we perform benchmarking tests using Apache Benchmark ab. This allows us to simulate multiple requests and measure Squid’s response times.

ab -n 100 -c 10 -X localhost:3128 http://example.com/

This command tests how Squid handles a high number of requests and whether cached content is served efficiently.

2 CHECK CACHE HIT RATIO
To determine how much content is being served from the cache, we use

squidclient -p 3128 mgr:info | grep "Cache Hit Ratio"

This will return statistics showing the percentage of requests served from cache rather than fetching from the original server.

3 MONITOR SYSTEM PERFORMANCE
We use system monitoring tools to observe network and disk activity before and after caching

sar -n DEV 2   # Monitor network traffic

iostat -x 2    # Monitor disk activity

If caching is working effectively, we should see decreased external network requests and increased disk usage as Squid serves more content from cache.

At this point, Squid’s performance is evaluated through benchmarking. By analyzing response times, cache hit ratios, and system performance metrics, we can determine the efficiency of Squid’s caching mechanism in reducing bandwidth usage and improving response times.

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