LiteSpeed Cuts Load On WordPress Sites.
Memory use fell 71% on two high-traffic WordPress sites. Customer: SigmaWeb (Greece).
Where They Started
- Two busy WordPress sites
- About 70 requests per second
- Roughly 1,000,000 page views a day
- Load of 8–12 on Apache
- More traffic on the way
- LiteSpeed Web Server 4-CPU license
- Installed in minutes with the cPanel plugin
- Load dropped below 1
- Memory use down 71%
What Happened
SigmaWeb, a well-regarded Greek hosting provider, took on two popular WordPress sites serving around 80,000 unique visitors a day. On Apache 2.4 the server ran at a load of 8 with spikes to 12.
After testing a trial license, they installed LiteSpeed through the cPanel plugin in a few minutes. Load fell below 1 and memory use dropped from over 14 GB to under 4 GB, as the number of processes went from 150–200 under Apache to fewer than 10 under LiteSpeed.
The result gave SigmaWeb the confidence to pursue the high-traffic hosting market they had previously avoided.
Server environment: Dell R510, 2× Xeon E5620 (12 cores), 16 GB RAM, 4× 300 GB SAS 15k in RAID 5.
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