Date: Tue, 17 Dec 2002 09:57:01 -0800 (PST) From: Sam Leffler <sam@FreeBSD.org> To: cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/ubsec ubsec.c ubsecvar.h Message-ID: <200212171757.gBHHv1g0028419@repoman.freebsd.org>
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sam 2002/12/17 09:57:01 PST
Modified files: (Branch: RELENG_4)
sys/dev/ubsec ubsec.c ubsecvar.h
Log:
o split hst_invalid statistic into separate buckets to help diagnose problems
o add statistics to track the queue length on the host and on the chip and
count the number of times the h/w reports it's too busy to accept more
requests
o change default batching parameter from 2 to 1 (no batching) for optimal
performance but at the cost of additional interrupts
o add a ubsec_maxaggr parameter that controls the number of mcr1 ops passed
to the h/w and default it to 1 for optimal performance; setting this value
to >1 will (potentially) increase interrupt coalescing but at the cost of
increased latency since the host only gets an interrupt when the entire batch
of requests is completed (tests show this is bad for network performance)
Sponsored by: Vernier Networks
Revision Changes Path
1.6.2.3 +54 -11 src/sys/dev/ubsec/ubsec.c
1.2.2.2 +9 -1 src/sys/dev/ubsec/ubsecvar.h
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