-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Wednesday 28 January 2004 09:43 am, John Baldwin wrote: > > Yes, I was running a kernel for a short while w/ INVARIANTS and > > WITNESS, but it was basically useless after a couple of hours under > > load under the giant lock. How much of a performance hit is just > > WITNESS? > > A lot. I think Robert Watson has seen as high a performance impact as > 40%. Oh joy - that's a non-starter... :( And it just happened again: - -=- spin lock sched lock held by 0x8d2f7a00 for > 5 seconds panic: spin lock held too long cpuid = 4; Debugger("panic") Stopped at Debugger+0x55: xchgl %ebx,in_Debugger.0 db> - -=- If there is anything else I can provide that doesn't make the system slow as molassess to help debug, I am all ears. Best Wishes - Peter - -- Peter_Losher_at_isc.org | ISC | OpenPGP Key E8048D08 | "The bits must flow" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (FreeBSD) iD8DBQFAGG4mPtVx9OgEjQgRAmvtAJ0effqPznHB65bWog9hfm8+WzzZIgCgxctn ++EFx1TJ+q63ErM6oFmy1O8= =LapX -----END PGP SIGNATURE-----Received on Wed Jan 28 2004 - 17:21:30 UTC
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