Date: Sun, 18 Oct 2020 15:50:57 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 248652] iflib: netmap pkt-gen large TX performance difference between 11-STABLE and 12-STABLE/CURRENT on ix & ixl NIC Message-ID: <bug-248652-7501-MxxzAHH67T@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-248652-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-248652-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D248652 --- Comment #19 from Vincenzo Maffione <vmaffione@FreeBSD.org> --- (In reply to Sylvain Galliano from comment #16) Thanks a lot. In the XL710 case, have you tried with lower values of the timer, such as 5= 0us down to 5 us? Is there any visible change? Also, have you looked at pkt-gen CPU utilization? That's something that tel= ls you if you are CPU limited (unlikely) or rather still limited by the "pseudo-interrupt rate" being too low. For, instance, how does pkt-gen CPU utilization look in the case of XL710 a= nd 1 queue (for simplicity, so that you have just a single thread)? --=20 You are receiving this mail because: You are on the CC list for the bug.=
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