Note that they tuned NT, but appear not to have tuned Linux, except for a
They did have a possibly real problem that was reported (pseudonymously);
the system was a 4-processor 400 MHz (Xeon) server with 1GB of ram, a RAID
controller, and six disks, Linux 2.2.2 SMP.
>The problem: the server performs well, delivering in excess of 1300 HTTP
>GET requests per second. But then performance drops WAAAY off, like down
>to 70 connections per second. We're not swapping, the network isn't
>saturated (4 x 100Mbit nets), disks are hardly used, but the system is
>just crawling. If it were saturated then performance should level off,
>not drop like this. Neither vmstat nor top show anything unusual. No
>error messages in the web server. Its puzzling.
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