X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=HOWTO;h=237b3ad23879efea84dbe46c69bd6754dc932f1d;hp=ea98810a211d97328232dfb593f84654cfa2f331;hb=8abdce6686bfcaa211e7eb75a69ec07e980bd96e;hpb=e4dd8a093ce7f13094460feead61d83c0c04f0ce diff --git a/HOWTO b/HOWTO index ea98810a..237b3ad2 100644 --- a/HOWTO +++ b/HOWTO @@ -570,8 +570,8 @@ Client1 (g=0): err= 0: bw (KiB/s) : min= 0, max= 1196, per=51.00%, avg=664.02, stdev=681.68 cpu : usr=1.49%, sys=0.25%, ctx=7969 IO depths : 1=0.1%, 2=0.3%, 4=0.5%, 8=99.0%, 16=0.0%, 32=0.0%, >32=0.0% - lat (msec): 2=1.6%, 4=0.0%, 8=3.2%, 16=12.8%, 32=38.4%, 64=24.8%, 128=15.2% - lat (msec): 256=4.0%, 512=0.0%, 1024=0.0%, >=2048=0.0% + lat (msec): 2=1.6%, 4=0.0%, 10=3.2%, 20=12.8%, 50=38.4%, 100=24.8%, + lat (msec): 250=15.2%, 500=0.0%, 750=0.0%, 1000=0.0%, >=2048=0.0% The client number is printed, along with the group id and error of that thread. Below is the io statistics, here for writes. In the order listed, @@ -605,8 +605,8 @@ IO latencies= The distribution of IO completion latencies. This is the time from when IO leaves fio and when it gets completed. The numbers follow the same pattern as the IO depths, meaning that 2=1.6% means that 1.6% of the IO completed - within 2 msecs, 16=12.8% means that 12.8% of the IO - took more than 8 msecs, but less than (or equal to) 16 msecs. + within 2 msecs, 20=12.8% means that 12.8% of the IO + took more than 10 msecs, but less than (or equal to) 20 msecs. After each client has been listed, the group statistics are printed. They will look like this: