Date: Mon, 3 Feb 2020 23:17:28 +0300 From: Slawa Olhovchenkov <slw@zxy.spb.ru> To: freebsd-net@freebsd.org Subject: Chelsio NETMAP performance Message-ID: <20200203201728.GC8028@zxy.spb.ru>
next in thread | raw e-mail | index | archive | help
I am try to use Chelsio T540-CR in netmap mode and see poor (compared
to Intel 82599ES) performance.
Same application ac receive only about 8.9Mpss, compared to 12.5Mpps
at Intel.
pmc profile show mostly time spend in:
49.76% [17802] service_nm_rxq @ /boot/kernel/if_cxgbe.ko
100.0% [17802] t4_vi_intr
100.0% [17802] ithread_loop @ /boot/kernel/kernel
100.0% [17802] fork_exit
to be exact at line
while ((d->rsp.u.type_gen & F_RSPD_GEN) == nm_rxq->iq_gen) {
Is this maximum limit for this vendor?
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20200203201728.GC8028>