On Thu, Mar 22, 2018 at 01:15:26PM +, matei marius wrote:
> haproxy -vv
> HA-Proxy version 1.8.4-1deb90d 2018/02/08
> Copyright 2000-2018 Willy Tarreau
>
> Build options :
> TARGET = linux26
> CPU = generic
> CC = gcc
> CFLAGS = -m64 -march=x86-64 -O2 -g -fno-strict-aliasin
haproxy -vv
HA-Proxy version 1.8.4-1deb90d 2018/02/08
Copyright 2000-2018 Willy Tarreau
Build options :
TARGET = linux26
CPU = generic
CC = gcc
CFLAGS = -m64 -march=x86-64 -O2 -g -fno-strict-aliasing
-Wdeclaration-after-statement -fwrapv -Wno-unused-label
OPTIONS = USE_P
Hi Marius,
your NIC is probably doing the TCP checksum calculation (called « TCP
offloading»). The TCP/IP stacks therefore sends all outbound TCP packets with
the same dummy checksum (in your case: 0x2a21) to the NIC driver. This saves
some CPU cycles.
Check your TCP offloading settings using:
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