Category: FreeBSD
Anything related to FreeBSD
Somewhat improved iperf3 performance on Chelsio T6225-CR
After upgrading to stable/11, r339418, incorporating the recent commits for cxgbe(4) et al. (r339389, and r339393-r339404), I see a somewhat improved iperf3 performance.
Read More → Somewhat improved iperf3 performance on Chelsio T6225-CRiperf3 and Chelsio T6225-CR
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
Chelsio T6225-CR and TOE
After upgrading to a recent base/stable/11, I noticed ifconfig -m now displays two more bits: TOE4 and TOE6 appear in the capabilities word, but not in the options word. (TOE in this case being TCP Offload Engine.)
Read More → Chelsio T6225-CR and TOEChelsio T6225-CR and SM10G-SR
I finally got my two Chelsio SM10G-SR SFP+ optical modules. First light have finally been achieved.
Read More → Chelsio T6225-CR and SM10G-SRChelsio T6225-CR has arrived
Boot messages for stable/11: The firmware was in need of an upgrade.
Read More → Chelsio T6225-CR has arrivedChelsio T6225-CR and SM25G-SR
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-SRUnable to build ports depending on security/nss
Update 2018-05-29T19:27+0200 synth 2.05 was released not long ago. None of the below applies.
Read More → Unable to build ports depending onsecurity/nss
Migrating UFS filesystem from one disk to another
I needed to migrate an UFS filesystem from one disk to another. I had several options including using two tar processes in a pipeline or using dump and restore in a pipeline. I opted for the latter to make sure everything got preserved during the transfer. Here’s the sequence of commands where /dev/gpt/nroot0 is the […]
Read More → Migrating UFS filesystem from one disk to anotherefi_max_resolution needed on base/head for UEFI systems without FHD displays
r331464 added efi_max_resolution. If you run base/head on monitors without Full HD (FHD), then you might need to specify your desired resolution in /boot/loader.conf. This should suffice for a resolution of 1280×1024 on 19 inches displays.
Read More →efi_max_resolution needed on base/head for UEFI systems without FHD displays
Kernel panic due to memory corruption
This is what a kernel panic may look like when facing memory corruption.
Read More → Kernel panic due to memory corruption