diff options
| author | Steve French <stfrench@microsoft.com> | 2019-09-10 06:57:11 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-09-16 19:43:38 +0300 |
| commit | 1b63f1840e787516bf2d3e5c27c2d22fe23cfb37 (patch) | |
| tree | 7e3413e58f1cf0a5bd3b577dfbee90b365a7b9cf /fs/cifs/cifs_debug.c | |
| parent | 10328c44cc1506dd82fd835efcaafd519866c464 (diff) | |
| download | linux-1b63f1840e787516bf2d3e5c27c2d22fe23cfb37.tar.xz | |
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/cifs_debug.c')
| -rw-r--r-- | fs/cifs/cifs_debug.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index a38d796f5ffe..0b4eee3bed66 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -452,6 +452,7 @@ static ssize_t cifs_stats_proc_write(struct file *file, list_for_each(tmp1, &cifs_tcp_ses_list) { server = list_entry(tmp1, struct TCP_Server_Info, tcp_ses_list); + server->max_in_flight = 0; #ifdef CONFIG_CIFS_STATS2 for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { atomic_set(&server->num_cmds[i], 0); @@ -526,6 +527,7 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) list_for_each(tmp1, &cifs_tcp_ses_list) { server = list_entry(tmp1, struct TCP_Server_Info, tcp_ses_list); + seq_printf(m, "\nMax requests in flight: %d", server->max_in_flight); #ifdef CONFIG_CIFS_STATS2 seq_puts(m, "\nTotal time spent processing by command. Time "); seq_printf(m, "units are jiffies (%d per second)\n", HZ); |