Re: Running Comet on a Virtual Server

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Posted by Robert G Laurin on May 20, 2016 at 06:58:06:

In Reply to: Re: Running Comet on a Virtual Server posted by HAL MARCH on May 19, 2016 at 14:42:35:

If CPU usage climbs very high, can you identify the process(es) hogging the CPU ? Is Comet Server the only thing running on that VM ?

The VirtIO is to address Network sluggishness not CPU hogging. Comet uses lots of smaller packets, so latency plays a major role in performance.

Good caching disk controller is a must. Better the cache, better the performance. I cheated on my last Comet server, I put the Comet critical data on a enterprise level 400GB SSD (solid state drive). The non-mission critical data (spool, logs, history) is on a terabyte drive. Performance is excelent !!

As for Comet on a Cloud, sorry to say i am no expert...

Only unexplained high CPU I seen on my VMs, was with a Ubuntu (Linux) server running MySQL. Not a really busy machine but after 2-3 weeks, CPU usage stayed high. Rebuild the VM on a better hardware platform with more memory and it works fine now.

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