A bottleneck is the place where transmission is the slowest.

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Bottleneck PHP/MySQL server

The server is getting slow on peak hours, and I don't really know how to find out the bottleneck. I can upgrade ram and cpu. Currently 2gb and 2x2.4ghz Linux CENTOS Around 60.000 pageviews per day ...
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Network card capable of capturing a tonne of packets and not dropping them?

Edit: Our server is trying to capture packets at between 500-600Mb/s, but is dropping packets 'due to kernel'. Data is being written to SSDs, and isn't bottleneck there. What things should I look ...
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Good Perfmon Counters for Initial Troubleshooting

I increasingly deal with users who complain there "computer is slow" or that "it takes forever to load" on the laptops we provide (fairly standard build of Windows 7 32-bit with Office 2010 and a few ...
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How to find the bottleneck for slow rsync

I want to find the bottleneck for a slow rsync. I see these parts (on byte flow order): IO on source CPU on source Network CPU on destination IO on destination How can I debug this?
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Google Compute Engine Poor Multi Core Performance

I am trying to move a simulation from a dedicated i7-4770 machine to Google Compute Engine. The problem being simulated is naturally parallel, with each thread in the simulation executing an ...