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| author | Ryan Doyle <rdoyle@aconex.com> | 2017-10-30 11:19:37 -0400 |
|---|---|---|
| committer | Steve Dickson <steved@redhat.com> | 2017-10-30 11:19:37 -0400 |
| commit | 5bf27d95b9fb7611a1acedf6e29781dc7d405b5a (patch) | |
| tree | e0c4e10757c981a2f7c0a7ad03c8f75ff34a3281 | |
| parent | 545b7409de356168a39644d38e2ab5f77f468de7 (diff) | |
| download | nfs-utils-5bf27d95b9fb7611a1acedf6e29781dc7d405b5a.tar.gz nfs-utils-5bf27d95b9fb7611a1acedf6e29781dc7d405b5a.tar.xz nfs-utils-5bf27d95b9fb7611a1acedf6e29781dc7d405b5a.zip | |
nfsiostat: display NFS RPC queue time for mountstats and nfs-iostat
Display the NFS queue statistics for mountstats and nfsiostat
exported in /proc/self/mountstats. The RTT and total execution
time is currently displayed but it's also useful displaying
how long the task was queued for too
Signed-off-by: Steve Dickson <steved@redhat.com>
| -rw-r--r-- | tools/mountstats/mountstats.py | 9 | ||||
| -rw-r--r-- | tools/nfs-iostat/nfs-iostat.py | 11 | ||||
| -rw-r--r-- | tools/nfs-iostat/nfsiostat.man | 7 |
3 files changed, 22 insertions, 5 deletions
diff --git a/tools/mountstats/mountstats.py b/tools/mountstats/mountstats.py index a68d702..29b5f5a 100644 --- a/tools/mountstats/mountstats.py +++ b/tools/mountstats/mountstats.py @@ -587,6 +587,7 @@ class DeviceData: ops = float(rpc_stats[0]) retrans = float(rpc_stats[1] - rpc_stats[0]) kilobytes = float(rpc_stats[3] + rpc_stats[4]) / 1024 + queued_for = float(rpc_stats[5]) rtt = float(rpc_stats[6]) exe = float(rpc_stats[7]) @@ -596,11 +597,13 @@ class DeviceData: retrans_percent = (retrans * 100) / ops rtt_per_op = rtt / ops exe_per_op = exe / ops + queued_for_per_op = queued_for / ops else: kb_per_op = 0.0 retrans_percent = 0.0 rtt_per_op = 0.0 exe_per_op = 0.0 + queued_for_per_op = 0.0 op += ':' print(format(op.lower(), '<16s'), end='') @@ -609,7 +612,8 @@ class DeviceData: print(format('kB/op', '>16s'), end='') print(format('retrans', '>16s'), end='') print(format('avg RTT (ms)', '>16s'), end='') - print(format('avg exe (ms)', '>16s')) + print(format('avg exe (ms)', '>16s'), end='') + print(format('avg queue (ms)', '>16s')) print(format((ops / sample_time), '>24.3f'), end='') print(format((kilobytes / sample_time), '>16.3f'), end='') @@ -617,7 +621,8 @@ class DeviceData: retransmits = '{0:>10.0f} ({1:>3.1f}%)'.format(retrans, retrans_percent).strip() print(format(retransmits, '>16'), end='') print(format(rtt_per_op, '>16.3f'), end='') - print(format(exe_per_op, '>16.3f')) + print(format(exe_per_op, '>16.3f'), end='') + print(format(queued_for_per_op, '>16.3f')) def display_iostats(self, sample_time): """Display NFS and RPC stats in an iostat-like way diff --git a/tools/nfs-iostat/nfs-iostat.py b/tools/nfs-iostat/nfs-iostat.py index 577a23d..7cbe543 100644 --- a/tools/nfs-iostat/nfs-iostat.py +++ b/tools/nfs-iostat/nfs-iostat.py @@ -326,6 +326,7 @@ class DeviceData: ops = float(rpc_stats[0]) retrans = float(rpc_stats[1] - rpc_stats[0]) kilobytes = float(rpc_stats[3] + rpc_stats[4]) / 1024 + queued_for = float(rpc_stats[5]) rtt = float(rpc_stats[6]) exe = float(rpc_stats[7]) @@ -335,11 +336,13 @@ class DeviceData: retrans_percent = (retrans * 100) / ops rtt_per_op = rtt / ops exe_per_op = exe / ops + queued_for_per_op = queued_for / ops else: kb_per_op = 0.0 retrans_percent = 0.0 rtt_per_op = 0.0 exe_per_op = 0.0 + queued_for_per_op = 0.0 op += ':' print(format(op.lower(), '<16s'), end='') @@ -348,7 +351,8 @@ class DeviceData: print(format('kB/op', '>16s'), end='') print(format('retrans', '>16s'), end='') print(format('avg RTT (ms)', '>16s'), end='') - print(format('avg exe (ms)', '>16s')) + print(format('avg exe (ms)', '>16s'), end='') + print(format('avg queue (ms)', '>16s')) print(format((ops / sample_time), '>24.3f'), end='') print(format((kilobytes / sample_time), '>16.3f'), end='') @@ -356,7 +360,8 @@ class DeviceData: retransmits = '{0:>10.0f} ({1:>3.1f}%)'.format(retrans, retrans_percent).strip() print(format(retransmits, '>16'), end='') print(format(rtt_per_op, '>16.3f'), end='') - print(format(exe_per_op, '>16.3f')) + print(format(exe_per_op, '>16.3f'), end='') + print(format(queued_for_per_op, '>16.3f')) def ops(self, sample_time): sends = float(self.__rpc_data['rpcsends']) @@ -429,7 +434,7 @@ def parse_stats_file(filename): words = line.split() if len(words) == 0: continue - if line.startswith("no device mounted") : + if line.startswith("no device mounted"): continue if words[0] == 'device': key = words[4] diff --git a/tools/nfs-iostat/nfsiostat.man b/tools/nfs-iostat/nfsiostat.man index b477a9a..9ae94c5 100644 --- a/tools/nfs-iostat/nfsiostat.man +++ b/tools/nfs-iostat/nfsiostat.man @@ -90,6 +90,13 @@ This is the duration from the time that NFS client does the RPC request to its k .RE .RE .RE +.RS 8 +- \fBavg queue (ms)\fR +.RS +This is the duration from the time the NFS client created the RPC request task to the time the request is transmitted. +.RE +.RE +.RE .TP Note that if an interval is used as argument to \fBnfsiostat\fR, then the diffrence from previous interval will be displayed, otherwise the results will be from the time that the share was mounted. |