Messages in this thread | | | Date | Fri, 20 Sep 2002 16:45:09 -0700 | Subject | Re: [ANNOUNCE] Native POSIX Thread Library 0.1 | From | Bill Huey (Hui) <> |
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On Fri, Sep 20, 2002 at 02:50:29PM -0700, Bill Huey wrote: > > how frequently does the GC thread run? > > Don't remember off hand, but it's like to be several times a second which is > often enough to be a problem especially on large systems with high load. > > The JVM with incremental GC is being targetted for media oriented tasks > using the new NIO, 3d library, etc... slowness in safepoints would cripple it > for these tasks. It's a critical item and not easily address by the current > 1:1 model.
Also throwing a signal to get the ucontext is pretty a expensive way of getting it. But you folks know this already. Solaris threading has this via a some special libraries. For large number of actively running threads, say, executing in a middle of a method block it is potentially a huge problem for scalability.
Again, it's a critical issue from what I see of this.
bill
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