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Tue, 11 Nov 2025 10:33:02 -0500 (EST) Date: Tue, 11 Nov 2025 15:33:00 +0000 From: void To: freebsd-net@freebsd.org Subject: vtnet is much improved in 16:current (nodebug) Message-ID: List-Id: Networking and TCP/IP with FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-net List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-net@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline X-Spamd-Bar: --- X-Spamd-Result: default: False [-3.60 / 15.00]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_SHORT(-1.00)[-0.996]; MID_RHS_NOT_FQDN(0.50)[]; DMARC_POLICY_ALLOW(-0.50)[f-m.fm,none]; R_DKIM_ALLOW(-0.20)[f-m.fm:s=fm3,messagingengine.com:s=fm3]; R_SPF_ALLOW(-0.20)[+ip4:202.12.124.128/27]; MIME_GOOD(-0.10)[text/plain]; RCVD_IN_DNSWL_LOW(-0.10)[202.12.124.146:from]; FREEMAIL_FROM(0.00)[f-m.fm]; RCVD_TLS_LAST(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_TRACE(0.00)[0:+]; RCVD_COUNT_THREE(0.00)[3]; RCPT_COUNT_ONE(0.00)[1]; ARC_NA(0.00)[]; FROM_HAS_DN(0.00)[]; FREEMAIL_ENVFROM(0.00)[f-m.fm]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_DN_NONE(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; DKIM_TRACE(0.00)[f-m.fm:+,messagingengine.com:+]; MLMMJ_DEST(0.00)[freebsd-net@freebsd.org]; ASN(0.00)[asn:151847, ipnet:202.12.124.0/24, country:AU]; RCVD_VIA_SMTP_AUTH(0.00)[]; MISSING_XM_UA(0.00)[]; DWL_DNSWL_NONE(0.00)[messagingengine.com:dkim] X-Rspamd-Queue-Id: 4d5Vsr6y7Jz3RSw Just like to say vtnet throughput performance is much improved in 16:current so, thank you everyone. # iperf3 -B 192.168.1.180 -c 192.168.1.230 -l 1M -t 30 -i 2 ; netstat -nCRp tcp | egrep "Active|Proto|5201" Connecting to host 192.168.1.230, port 5201 [ 5] local 192.168.1.180 port 53821 connected to 192.168.1.230 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-2.13 sec 236 MBytes 930 Mbits/sec 0 1.61 MBytes [ 5] 2.13-4.05 sec 201 MBytes 877 Mbits/sec 0 1.61 MBytes [ 5] 4.05-6.06 sec 210 MBytes 878 Mbits/sec 0 1.61 MBytes [ 5] 6.06-8.07 sec 220 MBytes 917 Mbits/sec 0 1.61 MBytes [ 5] 8.07-10.07 sec 215 MBytes 903 Mbits/sec 0 1.61 MBytes [ 5] 10.07-12.08 sec 208 MBytes 867 Mbits/sec 0 1.61 MBytes [ 5] 12.08-14.06 sec 174 MBytes 736 Mbits/sec 0 1.61 MBytes [ 5] 14.06-16.01 sec 209 MBytes 898 Mbits/sec 0 1.61 MBytes [ 5] 16.01-18.05 sec 220 MBytes 908 Mbits/sec 0 1.61 MBytes [ 5] 18.05-20.12 sec 210 MBytes 849 Mbits/sec 0 1.61 MBytes [ 5] 20.12-22.02 sec 210 MBytes 928 Mbits/sec 0 1.61 MBytes [ 5] 22.02-24.01 sec 219 MBytes 921 Mbits/sec 0 1.61 MBytes [ 5] 24.01-26.14 sec 226 MBytes 893 Mbits/sec 0 1.61 MBytes [ 5] 26.14-28.13 sec 193 MBytes 813 Mbits/sec 0 2.00 MBytes [ 5] 28.13-30.12 sec 206 MBytes 865 Mbits/sec 0 2.00 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-30.12 sec 3.09 GBytes 882 Mbits/sec 0 sender [ 5] 0.00-30.14 sec 3.09 GBytes 881 Mbits/sec receiver iperf Done. Active Internet connections Proto Recv-Q Send-Q Local Address Foreign Address flowid ftype CC cwin ssthresh MSS ECN tcp4 0 0 192.168.1.180.50691 192.168.1.230.5201 00000000 63 cubic 14814 10986 1460 off Compare with http://void.f-m.fm.user.fm/bhyve-virtio-testing.html measured around a year ago on very similar hardware --