On 7/30/19 10:32 PM, Damien Le Moal wrote: > If a block size percentage is ispecified as 0 in bssplit, the block size > defined is not ignored by the loop in get_next_buflen(). In particular, > if the first (smallest) block size specified has a 0 percentage, the > loop is existed and that block size used as the next IO size, resulting > in a behavior equivalent to specifying 100%. E.g. using > --bssplit=64k/0,1024k/100 results in 100% of issued IOs to be 64KB > instead of 1MB. > > Fix this by ignoring bssplit entries that have a 0 percentage. This is > safe as the initialization of the bssplit array ensure that the sum of > all percentages is always 100, guaranteeing that a block size will be > chosen for the next IO size. Applied, thanks Damien. -- Jens Axboe
