[Bug 256217] [tcp] High system load because of interrupts with RACK

From: <bugzilla-noreply_at_freebsd.org>
Date: Fri, 28 May 2021 14:04:41 UTC

--- Comment #3 from Christos Chatzaras <chris@cretaforce.gr> ---
These are dedicated servers with no virtualisation.



em0: <Intel(R) PRO/1000 Network Connection> mem 0xf7000000-0xf701ffff irq 16 at
device 31.6 on pci0


1) tcp_rack_load="YES" && "net.inet.tcp.functions_default=freebsd" && reboot =
problem does NOT exist

2) tcp_rack_load="NO" && "net.inet.tcp.functions_default=freebsd" && reboot =
problem does NOT exist


3) tcp_rack_load="YES" && "net.inet.tcp.functions_default=rack" && reboot = the
problem EXIST.

Then if without reboot I "net.inet.tcp.functions_default=freebsd" the problem
still EXIST.

But when after I change to "freebsd" I run "kldunload -f tcp_rack" the problem
does NOT exist.

You are receiving this mail because:
You are the assignee for the bug.