I ran four tests yesterday using iperf3. The T6225-CR NIC still runs with Chelsio’s SM10G-SR optics. It’s amazing that receiving TCP streams runs at full speed. Sending TCP streams limps away only at a few megabits per second. This wasn’t expected at all. Even IPv6 runs faster than IPv4 for these particular tests. The Cisco […]

Read More → iperf3 and Chelsio T6225-CR

I recently ordered a Chelsio T6225-CR network interface card and a couple of SM25G-SR SFP28 optical modules. The aim is to get a 10 Gbit/s connection to the LAN, utilise the off-load capabilities of the NIC, and of course utilise the on-board crypto accelerator. The latter will not be useable until the system moves to the upcoming […]

Read More → Chelsio T6225-CR and SM25G-SR

Update 2017-11-13 r325743 corrected the mistakes. The below no longer applies. Remove /boot/loader.rc.local if you created it. /boot/loader.rc used to be copied from base/head/sys/boot/i386/loader/loader.rc on FreeBSD/amd64. With r325694 this changed to base/head/sys/boot/forth/loader.rc. Nothing was added to base/head/UPDATING, explaining this change. As instructed in /boot/loader.rc, to regain our beloved boot menu, we must create and edit […]

Read More → Boot menu changes in base/head r325694