* Re: statistics on smb3 mount
[not found] ` <CAH2r5msYTnNHkfQ5+mMruraWdcNaKeZH5mVL7ps2HigiVk8XCA@mail.gmail.com>
@ 2018-07-31 21:49 ` Steve French
0 siblings, 0 replies; only message in thread
From: Steve French @ 2018-07-31 21:49 UTC (permalink / raw)
To: Volker.Lendecke, linux-fsdevel; +Cc: CIFS, samba-technical
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On the subject of which statistics to display on a cifs/smb3 mount - one
other example for comparison, mountstats. Note that nfs is the only
filesystem which seems to display detailed information in
/proc/<pid>/mountstats
See below sample output e.g. "cat /proc/1/mountstats" (would this be useful
to add for cifs.ko? ie implementing "show_stats" superblock method as nfs
does to display more detailed smb3 specific protocol statistics)
device vmware-vmblock mounted on /run/vmblock-fuse with fstype
fuse.vmware-vmblock
device //localhost/test mounted on /mnt with fstype cifs
device localhost:/nfsexport mounted on /mnt1 with fstype nfs4 statvers=1.1
opts:
rw,vers=4.2,rsize=1048576,wsize=1048576,namlen=255,acregmin=3,acregmax=60,acdirmin=30,acdirmax=60,hard,proto=tcp,timeo=600,retrans=2,sec=sys,clientaddr=127.0.0.1,local_lock=none
age: 1191
impl_id: name='',domain='',date='0,0'
caps: caps=0x1fbffff,wtmult=512,dtsize=32768,bsize=0,namlen=255
nfsv4:
bm0=0xfdffbfff,bm1=0x40f9be3e,bm2=0x20803,acl=0x3,sessions,pnfs=not
configured
sec: flavor=1,pseudoflavor=1
events: 11 9 0 0 6 0 19 1 0 19 0 3 12 0 3 2 0 2 0 0 1 0 0 0 0 0 0
bytes: 471859200 5 0 0 503316480 5 122880 1
RPC iostats version: 1.0 p/v: 100003/4 (nfs)
xprt: tcp 949 0 1 0 56 541 541 0 3932 0 11 13 3391
per-op statistics
NULL: 0 0 0 0 0 0 0 0
READ: 480 480 0 115200 503366400 1216 1606 2827
WRITE: 1 1 0 268 176 0 4 4
COMMIT: 0 0 0 0 0 0 0 0
OPEN: 1 1 0 340 372 0 6 6
OPEN_CONFIRM: 0 0 0 0 0 0 0 0
OPEN_NOATTR: 1 1 0 292 352 0 0 0
OPEN_DOWNGRADE: 0 0 0 0 0 0 0 0
CLOSE: 2 2 0 480 288 0 0 0
SETATTR: 0 0 0 0 0 0 0 0
FSINFO: 1 1 0 188 164 0 0 0
...
On Tue, Jul 31, 2018 at 4:17 PM Steve French <smfrench@gmail.com> wrote:
>
>
> On Tue, Jul 31, 2018 at 3:42 PM Volker Lendecke <Volker.Lendecke@sernet.de>
> wrote:
>
>> On Tue, Jul 31, 2018 at 03:21:02PM -0500, Steve French via
>> samba-technical wrote:
>>
>> > There are other statistics that can be dumped in Windows redirector, but
>> > those seem to be the most visible (those available via "net statistics
>> > workstation"). Any other suggested statistics?
>>
>> Response times. I know they are more difficult to track, but a little
>> logarithmic histogram might be doable.
>>
>>
> Probably doable. What do you think of the output of iostat (here is
> default iostat output)?
>
> $ iostat /dev/nvme0n1
> Linux 4.18.0-041800rc7-generic (smf-Thinkpad-P51) 07/31/2018
> _x86_64_ (8 CPU)
>
> avg-cpu: %user %nice %system %iowait %steal %idle
> 11.74 0.19 5.31 0.05 0.00 82.71
>
> Device tps kB_read/s kB_wrtn/s kB_read kB_wrtn
> nvme0n1 5.69 59.45 45.30 4187172 3190324
>
>
> Presumably nfsstats are not any more helpful - here is sample client stats
> output from nfsstat
>
> $ nfsstat -c
> Client rpc stats:
> calls retrans authrefrsh
> 522 0 522
>
> Client nfs v4:
> null read write commit
> open
> 1 0% 480 91% 1 0% 0 0%
> 1 0%
> open_conf open_noat open_dgrd close
> setattr
> 0 0% 1 0% 0 0% 2 0%
> 0 0%
> fsinfo renew setclntid confirm
> lock
> 3 0% 0 0% 0 0% 0 0%
> 0 0%
> lockt locku access getattr
> lookup
> 0 0% 0 0% 2 0% 12 2%
> 2 0%
> lookup_root remove rename link
> symlink
> 1 0% 0 0% 0 0% 0 0%
> 0 0%
> create pathconf statfs readlink
> readdir
> 0 0% 2 0% 2 0% 0 0%
> 2 0%
> server_caps delegreturn getacl setacl
> fs_locations
> 5 0% 0 0% 0 0% 0 0%
> 0 0%
> rel_lkowner secinfo fsid_present exchange_id
> create_session
> 0 0% 0 0% 0 0% 2 0%
> 1 0%
> destroy_session sequence get_lease_time reclaim_comp
> layoutget
> 0 0% 0 0% 0 0% 1 0%
> 0 0%
> getdevinfo layoutcommit layoutreturn secinfo_no
> test_stateid
> 0 0% 0 0% 0 0% 1 0%
> 0 0%
> free_stateid getdevicelist bind_conn_to_ses destroy_clientid
> seek
> 0 0% 0 0% 0 0% 0 0%
> 0 0%
> allocate deallocate layoutstats clone
> 0 0% 0 0% 0 0% 0 0%
>
> --
> Thanks,
>
> Steve
>
--
Thanks,
Steve
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