Sergey P. aka azure
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  • 6 votes cast
Dec
31
comment Disable hyperthreading from within Linux (no access to BIOS)
It works almost as I expected. virtual cores are disabled, now when I execute one cpu-consuming thread it loads physical core by 100%. But using sysbench --num-threads=1 --test=cpu run with different num-threads and HT turned on and off says that disabling HT decreases perfomrance when there are many threads, and even if there's just one thread there's no benefit from turning HT off. So I suggest to leave it as it is: it's optimal.
Sep
24
awarded  Autobiographer
Dec
19
awarded  Critic
Dec
19
comment How can I allow all users to run a given command via sudo?
-1 for suid bit.
Apr
1
answered httpd : Different website depending on remote ip
Jan
30
awarded  Supporter
Mar
14
answered Is it possible to have Novell NCP on top of IPv6?
Mar
14
comment Sendmail takes an age in Ubuntu
check for postifx log (/var/log/maillog on my machine)
Mar
6
awarded  Teacher
Mar
6
answered How to set no executing by users where they can write?
Mar
6
answered Sendmail takes an age in Ubuntu
Mar
6
answered What transport protocols can be routed properly over the Internet, other than TCP and UDP?