diff options
| author | Steve French <stfrench@microsoft.com> | 2019-03-26 13:53:21 -0500 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-05-07 23:24:54 -0500 |
| commit | 433b8dd7672be1140ffbb17eacba776298bf4733 (patch) | |
| tree | 101f08af23bd07fd74e55000ba1f0ce5e5a8261c /fs/cifs/cifs_debug.c | |
| parent | d3511f53bb2475f2a4e8460bee5a1ae6dea2a433 (diff) | |
SMB3: Track total time spent on roundtrips for each SMB3 command
Also track minimum and maximum time by command in /proc/fs/cifs/Stats
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifs_debug.c')
| -rw-r--r-- | fs/cifs/cifs_debug.c | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/fs/cifs/cifs_debug.c b/fs/cifs/cifs_debug.c index 13c1288b04a7..19ed9abe00de 100644 --- a/fs/cifs/cifs_debug.c +++ b/fs/cifs/cifs_debug.c @@ -462,8 +462,13 @@ static ssize_t cifs_stats_proc_write(struct file *file, server = list_entry(tmp1, struct TCP_Server_Info, tcp_ses_list); #ifdef CONFIG_CIFS_STATS2 - for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) + for (i = 0; i < NUMBER_OF_SMB2_COMMANDS; i++) { + atomic_set(&server->num_cmds[i], 0); atomic_set(&server->smb2slowcmd[i], 0); + server->time_per_cmd[i] = 0; + server->slowest_cmd[i] = 0; + server->fastest_cmd[0] = 0; + } #endif /* CONFIG_CIFS_STATS2 */ list_for_each(tmp2, &server->smb_ses_list) { ses = list_entry(tmp2, struct cifs_ses, @@ -531,9 +536,19 @@ static int cifs_stats_proc_show(struct seq_file *m, void *v) server = list_entry(tmp1, struct TCP_Server_Info, tcp_ses_list); #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); + seq_puts(m, " SMB3 CMD\tNumber\tTotal Time\tFastest\tSlowest\n"); + seq_puts(m, " --------\t------\t----------\t-------\t-------\n"); + for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) + seq_printf(m, " %d\t\t%d\t%llu\t\t%u\t%u\n", j, + atomic_read(&server->num_cmds[j]), + server->time_per_cmd[j], + server->fastest_cmd[j], + server->slowest_cmd[j]); for (j = 0; j < NUMBER_OF_SMB2_COMMANDS; j++) if (atomic_read(&server->smb2slowcmd[j])) - seq_printf(m, "%d slow responses from %s for command %d\n", + seq_printf(m, " %d slow responses from %s for command %d\n", atomic_read(&server->smb2slowcmd[j]), server->hostname, j); #endif /* STATS2 */ |