diff options
| author | Isaac Huang <[email protected]> | 2014-03-10 23:27:56 -0600 |
|---|---|---|
| committer | Brian Behlendorf <[email protected]> | 2014-03-12 08:56:12 -0700 |
| commit | 4e1c9f9c48186f61b5fbe1dd8bc150d48a9b9431 (patch) | |
| tree | 2716e6049737a4a615064e0ed5aa30e4515c48e9 /cmd | |
| parent | 4e26f2fccd8935c35017a18b0b5ae90464e6b8fe (diff) | |
Make arcstat.py default to one header per screen
Today arcstat.py prints one header every hdr_intr (20 by default)
lines. It would be more consistent with out utilities like vmstat
if hdr_intr defaulted to terminal window size, i.e. one header
per screenful of outputs.
Signed-off-by: Isaac Huang <[email protected]>
Signed-off-by: Prakash Surya <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #2183
Diffstat (limited to 'cmd')
| -rwxr-xr-x | cmd/arcstat/arcstat.py | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/cmd/arcstat/arcstat.py b/cmd/arcstat/arcstat.py index 8fe1331af..5a0912853 100755 --- a/cmd/arcstat/arcstat.py +++ b/cmd/arcstat/arcstat.py @@ -230,11 +230,20 @@ def print_header(): sys.stdout.write("%*s%s" % (cols[col][0], col, sep)) sys.stdout.write("\n") +def get_terminal_lines(): + try: + import fcntl, termios, struct + data = fcntl.ioctl(sys.stdout.fileno(), termios.TIOCGWINSZ, '1234') + sz = struct.unpack('hh', data) + return sz[0] + except: + pass def init(): global sint global count global hdr + global hdr_intr global xhdr global opfile global sep @@ -304,6 +313,10 @@ def init(): if xflag: hdr = xhdr + lines = get_terminal_lines() + if lines: + hdr_intr = lines - 3 + # check if L2ARC exists snap_stats() l2_size = cur.get("l2_size") |