Hi all,

been looking at outputs of x86info, cpuinfo, dmidecode, lshw

1. One guy http://dag.wieers.com/blog/is-hyper-threading-enabled-on-a-linux-system says:

(looking at cpuinfo) "If the number of cpu cores is the same as the number of siblings, hyper-threading is disabled."

seems wrong. I got ht enabled on a dell machine with two single core processors, cpuinfo saying there are 4 cores with a 1:1 ration of cores and siblings in each processor entry.

2. Of course, tons people say "check for the little ht flag in cpuinfo"

seems wrong. According to bios, I got another dell machine whose single dual core processor does not even support ht. ht flag still present in cpuinfo.

3. Some say, well check your service tag and/or other relative info from dmidecode.

managing boxes remotely, relative fields in dmidecode output state: "not specified"

anything else?

thanks.
J

okay i got a handle on it, look at number of sockets from dmidecode, then look at cpu cores in cpuinfo, depending on the number of processor entries, you can tell if ht is being used. was able to get correct readings on the 3 machines with different cpu setups was having trouble with. cool beans.

Thanks for posting - sure it will help some future forum searcher.