The night that Nick is referring to was when the Survival pack was released. We were running 320 instances of Left 4 Dead across 5 IBM HS21XM blades (Dual E5450s - 3Ghz each core) and the majority of the servers had players on them. All of the cores were running at 90+% CPU usage for a few hours. Each physical server was using around 11-12Gb of RAM for that.
We weren't doing anything special configuration wise, Left 4 Dead was running in a default manner. Nothing special done OS wise, just a stock install of CentOS. I played on one of our servers that night and I didn't notice anything in-game that indicated performance issues. Midnight wrote: > I'm really surprised by these numbers. I have some pretty finicky > players who play competitively. I don't know for sure if it is in their > head or not, but they claim they get lag with 1 game active on a whole > quad 9550 box which I find hard to believe so I tend to take it with a > grain of salt. > > I would never dream of running 32 games per quad CPU, that is insane > density imo. No offense but I find it amazing that you are getting any > decent performance with the CPU's nearly maxed out, maybe you have some > secret sauce in your system :) I get complaints after 25% CPU load on > the box so we run all of ours under that at all times, which means 3-4 > L4D's per box. They are using 6-9% cpu per game = up to about 40% of a > core on newer hardware. This could be from tweaking done to the game > settings. > > > > Nick Turner wrote: > >> We're running 8 servers per core on 5450s. 64 forks per 2 socket server. >> 16GB is more than enough on Linux. >> >> We've had an entirely server almost full, the CPUs are nearly maxed out but >> we didn't get any performance complaints. >> >> >> >> _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
