At 01:32 AM 5/25/2011, Kyle Sanderson wrote:
While this has been discussed a number of times (atrocious over usage of gettimeofday has been worked around). Can there be something done regarding the abuse of syscalls? I mean, something like this http://i.imgur.com/PdWTB.png isn't really that great. For instance, every 1 out of 4 futex syscalls fail due to timing out (shown in that picture). This is just expensive and downright silly. Not much can be done on our end without the source to SRCDS, which no doubt will not be released. The CPU usage that SRCDS manages to chug is borderline suicidal for the end result, not to mention the countless places in the engine where memory continues to leak like a sieve. This effects and hurts everyone. The 'serious' people who host servers cannot use Windows due to the lack of Symbols.
Abuse of syscalls? No offense, but strace/ktrace/truss et al only show syscalls, not flow of code! It measures the amount of syscalls and usage of them in CPU time. I could write a program to loop main() and chew up 99% CPU and no syscalls will be generated.
Maybe you could post what is timing out? It's probably doing EAGAIN over and over..
strace -Ff -s 99999 -p whatever _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlds_linux
