[Bug 272924] cxgbei drops connections during write, with 16+ sessions
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Date: Fri, 04 Aug 2023 14:55:58 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=272924
Navdeep Parhar <np@FreeBSD.org> changed:
What |Removed |Added
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CC| |np@FreeBSD.org
--- Comment #1 from Navdeep Parhar <np@FreeBSD.org> ---
By default the driver allocates just 2 TOE txq/rxq (these are the queues used
by all the offload drivers, including cxgbei). The first thing to try would be
to increase these to 4 or 8, depending on the number of cores in the system.
Try this in loader.conf:
hw.cxgbe.nofldtxq="-8"
hw.cxgbe.nofldrxq="-8"
Keep an eye on "netstat -dI <ifnet> -w1" when the system is under load. It may
be that there are packet drops leading to retransmits and loss of performance.
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