Messages in this thread |  | | | Date | Wed, 18 Dec 2002 19:59:40 -0500 | | From | Jeff Garzik <> | | Subject | Re: 15000+ processes -- poor performance ?! |
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On Wed, Dec 18, 2002 at 04:46:15PM -0800, Till Immanuel Patzschke wrote: > Dear List(s), > > as part of my project I need to run a very high number of processes/threads on a > linux machine. Right now I have a Dual-PIII 1.4G w/ 8GB RAM -- I am running > 4000 processes w/ 2-3 threads each totaling in a process count of 15000+ > processes (since Linux doesn't really distinguish between threads and > processes...). > Once I pass the 10000 (+/-) pocesses load increases drastically (on startup, > although it returns to normal), however the system time (on one processor) > reaches for 54% (12061 procs) while the only non sleeping process is top -- the > system is basically doing nothing (except scheduling the "nothing" which > consumes significant system time). > Is there anything I can do to reduce that system load/time? (I haven't been > able to exactly define the "line" but it definitly gets worse the more processes > need to be handled.)
Redesign your program to not do silly things like this.
Unless you have hardware with 5000 or more CPUs...
Jeff
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