Forum Discussion
wsanders_233261
Nimbostratus
NimbostratusWhat does TMM do when it is CPU bound?
We have a active/standby LTM pair in which BOTH hosts are CPU bound at peak periods. There are 4 cores per pair, the TMM processes are using 99% CPU on both of their two cores on each host. (TMSH 11....
wsanders_233261Nimbostratus
NimbostratusJust as a warning, we have gone through our git blame for what initiated the pegged CPU, and the root cause was changing to "response-chunking rechunk" from whatever the default is for http profiles, "selective", I think.
This increased our CPU consumption drastically as shown below.
This is a 4 core virtual LTM on a 2150 blade. This blade processes about 1000 reqs/sec with 5 to 10k connections.
So "rechunk" is a very bad idea. The picture shows it all:
