On 2011-07-23 20:53, Dave Engberg wrote:
> The 'bs' and 'bssplit' configuration variables accept separate numbers for read and write operations if you separate them with a comma. For example:
> bssplit=1k/39:8k/50:64k/11,1k/29:8k/50:64k/21
>
> The documentation for 'bsrange' says it works the same way, but if I try to specify two ranges with a comma, I get an error when I run the app. E.g. if I put this line in the configuration file:
> bsrange=1k-16k,2k-32k
>
> I get this error output:
>
> fio: pid=26861, err=22/file:engines/sync.c:62, func=xfer, error=Invalid argument
>
> Here's my attempt at a patch for this:
>
>
> *** fio-1.57-orig/parse.c 2011-07-14 11:20:25.000000000 -0700
> --- fio-1.57/parse.c 2011-07-23 11:38:12.000000000 -0700
> ***************
> *** 453,458 ****
> --- 453,464 ----
>
> strncpy(tmp, ptr, sizeof(tmp) - 1);
>
> + // Handle bsrange with separate read,write values:
> + p1 = strchr(tmp, ',');
> + if (p1) {
> + *p1 = '\0';
> + }
> +
> p1 = strchr(tmp, '-');
> if (!p1) {
> p1 = strchr(tmp, ':');
>
Does this actually work, do you get the ranges set correctly? bssplit
has a separate parse handler for the range.
--
Jens Axboe
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