DragonFly kernel List (threaded) for 2011-02
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Function assist with iostat
Hello,
I am porting the iostat from FreeBSD.
I have problem with the function devstat_compute_statistics()
Here is how its used in FreeBSD ans I tried the compute_stats() in dragonfly but still need this equivalent to be correct
So, please give me the correct usage of compute_stats similar to devstat_compute_statistics in the FreeBSD, here it is:
if (devstat_compute_statistics(&cur.dinfo->devices[di],
&last.dinfo->devices[di], busy_seconds,
DSM_KB_PER_TRANSFER, &kb_per_transfer,
DSM_TRANSFERS_PER_SECOND, &transfers_per_second,
DSM_MB_PER_SECOND, &mb_per_second, DSM_NONE) != 0)
errx(1, "%s", devstat_errbuf);
Also, is it OK if we call getnumdevs() without any arguments (its similar to freebsd devstat_getdevs()).
The FreeBSD uses:
switch (devstat_getdevs(NULL, &cur)) {
case -1:
errx(1, "%s", devstat_errbuf);
break;
case 1:
cmdiostat("refresh", NULL);
break;
default:
break;
}
I am still trying to remove some warnings and error. Will mail you if need more help.
pratyush.kshirsagar (@ gmail.com)
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