sysctl -zarc for ZFS users

[Ranjan1018 .]

2014-12-06 11:35 GMT+01:00 Yoshihiro Ota <ota at j.email.ne.jp>:

> Hi all.
>
> I've been watching ZFS activites on my machine and
> improved systat to monitor such.
>
> One of my first goals is to watch ZFS cache statistics.
>
> I posted my patch to the bugzilla @
> https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=195460
> I've been using on 11-CURRENT and 10.1-RELEASE myself.
>
> Regards,
> Hiro
>
> % systat -zarc
>                        Total     MFU     MRU    Anon     Hdr   L2Hdr
>  Other
>      ZFS ARC            206M     63M    136M    826K   1102K      0K
>  5251K
>
>                                 rate    hits  misses   total hits total
> misses
>      arcstats                  : 75%    1183     388        23721
>  4202
>      arcstats.demand_data      :  0%       0       0          528
>   0
>      arcstats.demand_metadata  : 76%    1007     308        21441
>  2757
>      arcstats.prefetch_data    :  0%       0       0            0
>   0
>      arcstats.prefetch_metadata: 68%     176      80         1752
>  1445
>      zfetchstats               : 44%     954    1204        26410
> 25482
>      arcstats.l2               :  0%       0       0            0
>   0
>      vdev_cache_stats          :  0%       0       0            0
>   0
>

Hi Hiro,

just applied the patch, but I receive the error:

# make
make: don't know how to make zarc.c. Stop
make: stopped in /usr/src/usr.bin/systat

The file zarc,c is missing. Where can I find it ?

Thanks.
Maurizio