diff options
| author | Arnaldo Carvalho de Melo <acme@felicio.ghostprotocols.net> | 2015-06-09 16:27:30 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@felicio.ghostprotocols.net> | 2015-06-09 16:27:30 -0300 |
| commit | 4b3c3b16e4301aea0dcc84772d4fa79d60f5c114 (patch) | |
| tree | 1160f177d66fd8db07ad68a02ac5c286b64eeac3 | |
| parent | c88cc9023068430db3f92919048c47b67c6edcd7 (diff) | |
| download | tuna-4b3c3b16e4301aea0dcc84772d4fa79d60f5c114.tar.gz | |
CLI: Do not show column headers when not outputting to a tty:
[root@felicio ~]# tuna -q en* -Q
# users affinity
54 enp1s0f0-TxRx-0 0,1,2 ixgbe
55 enp1s0f0-TxRx-1 0,1,2 ixgbe
56 enp1s0f0-TxRx-2 0,1,2 ixgbe
57 enp1s0f0-TxRx-3 0,1,2 ixgbe
58 enp1s0f0 0,1,2 ixgbe
59 enp1s0f1-TxRx-0 0,1,2 ixgbe
60 enp1s0f1-TxRx-1 0,1,2 ixgbe
61 enp1s0f1-TxRx-2 0,1,2 ixgbe
62 enp1s0f1-TxRx-3 0,1,2 ixgbe
63 enp1s0f1 0,1,2 ixgbe
66 enp7s0 0,1,2 atl1c
[root@felicio ~]# tuna -q en* -Q | head -4
54 enp1s0f0-TxRx-0 0,1,2 ixgbe
55 enp1s0f0-TxRx-1 0,1,2 ixgbe
56 enp1s0f0-TxRx-2 0,1,2 ixgbe
57 enp1s0f0-TxRx-3 0,1,2 ixgbe
[root@felicio ~]#
[root@felicio ~]# tuna -t xfs-d* -P
thread ctxt_switches
pid SCHED_ rtpri affinity voluntary nonvoluntary cmd
459 OTHER 0 0,1,2,3 2 1 xfs-data/dm-1
654 OTHER 0 0,1,2,3 2 0 xfs-data/sda1
669 OTHER 0 0,1,2,3 2 0 xfs-data/dm-2
[root@felicio ~]# tuna -t xfs-d* -P | head
459 OTHER 0 0,1,2,3 2 1 xfs-data/dm-1
654 OTHER 0 0,1,2,3 2 0 xfs-data/sda1
669 OTHER 0 0,1,2,3 2 0 xfs-data/dm-2
[root@felicio ~]#
Useful, for instance, when using wc to count how many IRQs or threadas match
some filters.
Signed-off-by: Arnaldo Carvalho de Melo <acme@felicio.ghostprotocols.net>
| -rwxr-xr-x | tuna-cmd.py | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tuna-cmd.py b/tuna-cmd.py index f85b629..270e769 100755 --- a/tuna-cmd.py +++ b/tuna-cmd.py @@ -305,7 +305,8 @@ def do_ps(thread_list, cpu_list, irq_list, show_uthreads, has_ctxt_switch_info = ps[1]["status"].has_key("voluntary_ctxt_switches") try: - ps_show_header(has_ctxt_switch_info, cgroups) + if sys.stdout.isatty(): + ps_show_header(has_ctxt_switch_info, cgroups) ps_show(ps, affect_children, thread_list, cpu_list, irq_list, show_uthreads, show_kthreads, has_ctxt_switch_info, sock_inodes, sock_inode_re, cgroups) @@ -334,7 +335,8 @@ def show_irqs(irq_list, cpu_list): if not irqs: irqs = procfs.interrupts() - print "%4s %-16s %8s" % ("#", _("users"), _("affinity"),) + if sys.stdout.isatty(): + print "%4s %-16s %8s" % ("#", _("users"), _("affinity"),) sorted_irqs = [] for k in irqs.keys(): try: |