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| author | Steve French <stfrench@microsoft.com> | 2019-09-09 22:57:11 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-09-16 11:43:38 -0500 |
| commit | 1b63f1840e787516bf2d3e5c27c2d22fe23cfb37 (patch) | |
| tree | 7e3413e58f1cf0a5bd3b577dfbee90b365a7b9cf /fs/cifs/cifsglob.h | |
| parent | 10328c44cc1506dd82fd835efcaafd519866c464 (diff) | |
| download | lwn-1b63f1840e787516bf2d3e5c27c2d22fe23cfb37.tar.gz lwn-1b63f1840e787516bf2d3e5c27c2d22fe23cfb37.zip | |
smb3: display max smb3 requests in flight at any one time
Displayed in /proc/fs/cifs/Stats once for each
socket we are connected to.
This allows us to find out what the maximum number of
requests that had been in flight (at any one time). Note that
/proc/fs/cifs/Stats can be reset if you want to look for
maximum over a small period of time.
Sample output (immediately after mount):
Resources in use
CIFS Session: 1
Share (unique mount targets): 2
SMB Request/Response Buffer: 1 Pool size: 5
SMB Small Req/Resp Buffer: 1 Pool size: 30
Operations (MIDs): 0
0 session 0 share reconnects
Total vfs operations: 5 maximum at one time: 2
Max requests in flight: 2
1) \\localhost\scratch
SMBs: 18
Bytes read: 0 Bytes written: 0
...
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 6987fbc5a24a..ef2199913217 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -677,6 +677,7 @@ struct TCP_Server_Info { unsigned int credits; /* send no more requests at once */ unsigned int max_credits; /* can override large 32000 default at mnt */ unsigned int in_flight; /* number of requests on the wire to server */ + unsigned int max_in_flight; /* max number of requests that were on wire */ spinlock_t req_lock; /* protect the two values above */ struct mutex srv_mutex; struct task_struct *tsk; |