X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=HOWTO;h=0f9c0fc28bd4dfff82c07d35411203e47ed379aa;hb=7750aac43ee4e0c001860426e6fdaf22d9ddfc76;hp=ef2b631d849e7206323623e91d4e236157c58705;hpb=c2acfbac7e9eb8ac5407ac024c0fd000614c77e2;p=fio.git diff --git a/HOWTO b/HOWTO index ef2b631d..0f9c0fc2 100644 --- a/HOWTO +++ b/HOWTO @@ -262,7 +262,8 @@ description=str Text description of the job. Doesn't do anything except not parsed. directory=str Prefix filenames with this directory. Used to place files - in a different location than "./". + in a different location than "./". See the 'filename' option + for escaping certain characters. filename=str Fio normally makes up a filename based on the job name, thread number, and file number. If you want to share @@ -518,6 +519,8 @@ bs_is_seq_rand If this option is set, fio will use the normal read,write zero_buffers If this option is given, fio will init the IO buffers to all zeroes. The default is to fill them with random data. + The resulting IO buffers will not be completely zeroed, + unless scramble_buffers is also turned off. refill_buffers If this option is given, fio will refill the IO buffers on every submit. The default is to only fill it at init @@ -936,8 +939,9 @@ cpus_allowed_policy=str Set the policy of how fio distributes the CPUs split Each job will get a unique CPU from the CPU set. 'shared' is the default behaviour, if the option isn't - specified. If split is specified, then fio will error out if - there are more jobs defined than CPUs given in the set. + specified. If split is specified, then fio will will assign + one cpu per job. If not enough CPUs are given for the jobs + listed, then fio will roundrobin the CPUs in the set. numa_cpu_nodes=str Set this job running on spcified NUMA nodes' CPUs. The arguments allow comma delimited list of cpu numbers,