Re: pmrep: add support for swapping columns and rows in stdout output

"Mark Goodwin" <[email protected]>
Newsgroups gmane.comp.sysutils.pcp
Message-ID <[email protected]>
Hi Marko,

I love it! Testing it out, could we consider adding an argument to the -X
flag to label the instance name column, and maybe some way to specify it's
width (independently of the width for the data columns)?

Here's pmiostat basically implemented on the command line with pmrep -
awesome!

# pmrep -P 1 -w 8 -p -f%c -X disk.dev.read_merge,rrqm/s,,,6
disk.dev.write_merge,rrqm/s,,,6 disk.dev.read,r/s,,,6
disk.dev.write,w/s,,,6 disk.dev.read_bytes,rKB/s,,,6
disk.dev.write_bytes,wKB/s,,,6 disk.dev.avg_rqsz,avgrq-sz,,,6
disk.dev.avg_qlen,avgqu-sz,,,6 disk.dev.await,await,,,6
disk.dev.r_await,r_await,,,6 disk.dev.w_await,w_await,,,6
disk.dev.util,'%util',,,6
                                      rrqm/s    rrqm/s       r/s       w/s
    rKB/s     wKB/s  avgrq-sz  avgqu-sz     await   r_await   w_await
%util
                                     count/s   count/s   count/s   count/s
  Kbyte/s   Kbyte/s  Kbyte/co            ms/count  ms/count  ms/count

Thu Nov  3 12:01:14 2016  sda            N/A       N/A       N/A       N/A
      N/A       N/A

Thu Nov  3 12:01:14 2016  sdb            N/A       N/A       N/A       N/A
      N/A       N/A

Thu Nov  3 12:01:15 2016  sda            0.0       0.0       0.0     173.5
      0.0     801.8       4.6       0.4       2.0       0.0       2.0
0.3
Thu Nov  3 12:01:15 2016  sdb            0.0       0.0       0.0       0.0
      0.0       0.0       0.0       0.0       0.0       0.0       0.0
0.0
Thu Nov  3 12:01:16 2016  sda            0.0       0.0       0.0       0.0
      0.0       0.0       0.0       0.0       0.0       0.0       0.0
0.0
Thu Nov  3 12:01:16 2016  sdb            0.0       0.0       0.0       0.0
      0.0       0.0       0.0       0.0       0.0       0.0       0.0
0.0
Thu Nov  3 12:01:17 2016  sda            0.0      10.0       0.0      20.9
      0.0     119.7       5.7       0.0       0.5       0.0       0.5
1.1
Thu Nov  3 12:01:17 2016  sdb            0.0       0.0       0.0       0.0
      0.0       0.0       0.0       0.0       0.0       0.0       0.0
0.0


Also, when metrics with different instance domains are specified, maybe we
could have a 'filler' such as '-' or '.' or something for the columns which
don't make sense on the line for each instance. This would make it easier
to parse and post-process because we'd have a fixed number of columns to
pick out in the report. e.g.

# pmrep -p -f%c -X disk.dev.{read,write}_bytes
network.interface.{in,out}.bytes
                                                    d.d.read_bytes
 d.d.write_bytes  n.i.i.bytes  n.i.o.bytes
                                                           Kbyte/s
 Kbyte/s       byte/s       byte/s
Thu Nov  3 11:54:31 2016  sda                                  N/A
     N/A
Thu Nov  3 11:54:31 2016  sdb                                  N/A
     N/A
Thu Nov  3 11:54:31 2016  docker0
                 N/A          N/A
Thu Nov  3 11:54:31 2016  virbr0
                  N/A          N/A
Thu Nov  3 11:54:31 2016  virbr0-nic
                  N/A          N/A
Thu Nov  3 11:54:31 2016  enp0s26u1u2u1
                 N/A          N/A
Thu Nov  3 11:54:31 2016  wlp3s0
                  N/A          N/A
Thu Nov  3 11:54:31 2016  tun0
                  N/A          N/A
Thu Nov  3 11:54:31 2016  lo
                  N/A          N/A
Thu Nov  3 11:54:31 2016  wwp0s20u4i6
                 N/A          N/A
Thu Nov  3 11:54:32 2016  sda                                0.000
   0.000
Thu Nov  3 11:54:32 2016  sdb                                0.000
   0.000
Thu Nov  3 11:54:32 2016  docker0
               0.000        0.000
Thu Nov  3 11:54:32 2016  virbr0
                0.000        0.000
Thu Nov  3 11:54:32 2016  virbr0-nic
                0.000        0.000
Thu Nov  3 11:54:32 2016  enp0s26u1u2u1
              90.723       85.738
Thu Nov  3 11:54:32 2016  wlp3s0
                0.000        0.000
Thu Nov  3 11:54:32 2016  tun0
                0.000        0.000
Thu Nov  3 11:54:32 2016  lo
              661.981      661.981
Thu Nov  3 11:54:32 2016  wwp0s20u4i6
               0.000        0.000

Jamie, time to write pcp-nicstat and friends! No coding needed :)

-- Mark

On Wed, Nov 2, 2016 at 8:16 PM, Marko Myllynen <[email protected]> wrote:

> Hi,
>
> Add an alternative output mode for pmrep:
>
> $ pmrep -s3 -r -X network.interface.in.bytes network.interface.out.bytes
>           n.i.i.bytes  n.i.o.bytes
>                  byte         byte
> lo              56168        56168
> virbr0-n            0            0
> virbr0          27350        16350
> wlan0       127503211     16790503
> tun0          3661355      1188515
> lo              56168        56168
> virbr0-n            0            0
> virbr0          27350        16350
> wlan0       127503211     16790503
> tun0          3661355      1188515
> lo              56168        56168
> virbr0-n            0            0
> virbr0          27350        16350
> wlan0       127503211     16790503
> tun0          3661355      1188515
> $
>
> Also allows easier grepping (if -i is not feasible) and emulating some
> other utilities more closer, e.g., nicstat(1):
>
> https://github.com/superjamie/pcp/commit/c6969807a7dfdf2bce6f3b1dff0ec1
> 084bb947f1
>
> Passes existing QA, new QA case added for this.
>
> Caching results is needed, something like "pmrep -s1 -X proc" took
> half a minute without caching, with caching around one second.
>
> ---
>  qa/1069                      |   1 +
>  qa/1069.out                  |  62 +++++++++++++++
>  src/bashrc/pcp_completion.sh |   2 +-
>  src/pmrep/TODO               |   3 +-
>  src/pmrep/pmrep.1            |  16 +++-
>  src/pmrep/pmrep.conf         |   1 +
>  src/pmrep/pmrep.conf.5       |   6 ++
>  src/pmrep/pmrep.py           | 186 ++++++++++++++++++++++++++++++
> ++++++++++++-
>  src/zshrc/_pcp               |   1 +
>  9 files changed, 269 insertions(+), 9 deletions(-)
>
> diff --git a/qa/1069 b/qa/1069
> index 7d216a9..f73daac 100755
> --- a/qa/1069
> +++ b/qa/1069
> @@ -86,6 +86,7 @@ pmrep -T 7s -t 3 -p $log -c $tmp.config -x sample |
> _path_filter \
>  | _archive_filter
>  echo "---"
>  pmrep -s 5 -t 2 $log -c $tmp.config -G -H -U sample
> +pmrep -s 5 -t 2 $log2 -c $tmp.config -p -l '|' -X disk.dev.read
> disk.dev.write disk.dev.total network.interface.mtu mem.util.free
> kernel.all.load mem.util.used
>
>  echo "== exercise non-integer options"
>  pmrep -T 2.5s -t 0.5 -p $log -c $tmp.config -x sample | _path_filter \
> diff --git a/qa/1069.out b/qa/1069.out
> index 6c3723b..22b97dc 100644
> --- a/qa/1069.out
> +++ b/qa/1069.out
> @@ -78,6 +78,68 @@ HH:MM:SS        1
>        1.000        1000.033
>        1.000        1000.001
>        1.000        1000.016
> +        |        |d.d.read|d.d.write|d.d.total|
> n.i.mtu|m.u.free|k.a.load|m.u.used
> +        |        | count/s|  count/s|  count/s|   byte|   Kbyte|
> |   Kbyte
> +00:47:01|sda     |     N/A|      N/A|      N/A|       |        |        |
> +00:47:01|sdb     |     N/A|      N/A|      N/A|       |        |        |
> +00:47:01|sdc     |     N/A|      N/A|      N/A|       |        |        |
> +00:47:01|hdc     |     N/A|      N/A|      N/A|       |        |        |
> +00:47:01|sdd     |     N/A|      N/A|      N/A|       |        |        |
> +00:47:01|sde     |     N/A|      N/A|      N/A|       |        |        |
> +00:47:01|lo      |        |         |         |  16436|        |        |
> +00:47:01|eth0    |        |         |         |   1500|        |        |
> +00:47:01|None    |        |         |         |       |   38220|        |
> 6068648
> +00:47:01|1 minute|        |         |         |       |        |   0.820|
> +00:47:01|5 minute|        |         |         |       |        |   0.700|
> +00:47:01|15 minut|        |         |         |       |        |   0.590|
> +00:47:03|sda     |   0.000|    0.500|    0.500|       |        |        |
> +00:47:03|sdb     |  30.000|  296.500|  326.500|       |        |        |
> +00:47:03|sdc     |   0.500|    0.500|    1.000|       |        |        |
> +00:47:03|hdc     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:03|sdd     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:03|sde     |   1.000|   12.000|   12.000|       |        |        |
> +00:47:03|lo      |        |         |         |  16436|        |        |
> +00:47:03|eth0    |        |         |         |   1500|        |        |
> +00:47:03|None    |        |         |         |       |   38220|        |
> 6068648
> +00:47:03|1 minute|        |         |         |       |        |   0.820|
> +00:47:03|5 minute|        |         |         |       |        |   0.700|
> +00:47:03|15 minut|        |         |         |       |        |   0.590|
> +00:47:05|sda     |   0.000|    0.500|    0.500|       |        |        |
> +00:47:05|sdb     |  30.000|  296.000|  326.000|       |        |        |
> +00:47:05|sdc     |   0.000|    0.500|    0.500|       |        |        |
> +00:47:05|hdc     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:05|sdd     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:05|sde     |   1.000|   11.500|   12.500|       |        |        |
> +00:47:05|lo      |        |         |         |  16436|        |        |
> +00:47:05|eth0    |        |         |         |   1500|        |        |
> +00:47:05|None    |        |         |         |       |   38220|        |
> 6068648
> +00:47:05|1 minute|        |         |         |       |        |   0.820|
> +00:47:05|5 minute|        |         |         |       |        |   0.700|
> +00:47:05|15 minut|        |         |         |       |        |   0.590|
> +00:47:07|sda     |   0.000|    0.500|    0.500|       |        |        |
> +00:47:07|sdb     |  30.000|  296.500|  326.500|       |        |        |
> +00:47:07|sdc     |   0.500|    0.500|    1.000|       |        |        |
> +00:47:07|hdc     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:07|sdd     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:07|sde     |   1.000|   11.500|   12.500|       |        |        |
> +00:47:07|lo      |        |         |         |  16436|        |        |
> +00:47:07|eth0    |        |         |         |   1500|        |        |
> +00:47:07|None    |        |         |         |       |   38220|        |
> 6068648
> +00:47:07|1 minute|        |         |         |       |        |   0.820|
> +00:47:07|5 minute|        |         |         |       |        |   0.700|
> +00:47:07|15 minut|        |         |         |       |        |   0.590|
> +00:47:09|sda     |   0.000|    0.500|    0.500|       |        |        |
> +00:47:09|sdb     |  30.000|  296.000|  326.000|       |        |        |
> +00:47:09|sdc     |   0.500|    0.500|    0.500|       |        |        |
> +00:47:09|hdc     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:09|sdd     |   0.000|    0.000|    0.000|       |        |        |
> +00:47:09|sde     |   0.500|   11.500|   12.500|       |        |        |
> +00:47:09|lo      |        |         |         |  16436|        |        |
> +00:47:09|eth0    |        |         |         |   1500|        |        |
> +00:47:09|None    |        |         |         |       |   38220|        |
> 6068648
> +00:47:09|1 minute|        |         |         |       |        |   0.820|
> +00:47:09|5 minute|        |         |         |       |        |   0.700|
> +00:47:09|15 minut|        |         |         |       |        |   0.590|
>  == exercise non-integer options
>
>    archive: QAPATH/archives/sample-secs
> diff --git a/src/bashrc/pcp_completion.sh b/src/bashrc/pcp_completion.sh
> index 9bffae0..ff11b9d 100644
> --- a/src/bashrc/pcp_completion.sh
> +++ b/src/bashrc/pcp_completion.sh
> @@ -42,7 +42,7 @@ _pcp_complete()
>          ;;
>
>          pmrep)
> -        opt_regex="-[AaBbcCdDeEfFGhHiKLloOpPqQrsStTuUVwxyYzZ]"
> +        opt_regex="-[AaBbCcDdEeFfGHhiKLlOoPpQqrSsTtUuVwXxYyZz]"
>          curpos_expand=1
>          ;;
>
> diff --git a/src/pmrep/TODO b/src/pmrep/TODO
> index 317b4a7..ecb4c0b 100644
> --- a/src/pmrep/TODO
> +++ b/src/pmrep/TODO
> @@ -1,5 +1,4 @@
>  -  opt to write cols per row with stdout output [-k]
> --  opt to swap cols and rows (e.g., compare ps vs sar)
>  -  -Q/-B/-Y to override per-metric settings unit/scale
>  -  shorten unit display count/s -> c/s if needed
>  -  opt to output in short format (see pmdumptext -F / pmNumberStr) [-m/-M]
> @@ -27,7 +26,7 @@
>  -----
>
>  In use / reserved cmd line options:
> -AaBbcCdDeEfFGhHiKLloOpPqQrsStTuUVwxyYzZ
> +AaBbCcDdEeFfGHhiKLlOoPpQqrSsTtUuVwXxYyZz
>
>  Tentatively planned:
>  IkMmR
> diff --git a/src/pmrep/pmrep.1 b/src/pmrep/pmrep.1
> index 7ccfb08..4755583 100644
> --- a/src/pmrep/pmrep.1
> +++ b/src/pmrep/pmrep.1
> @@ -20,7 +20,7 @@
>  \f3pmrep\f1 \- performance metrics reporter
>  .SH SYNOPSIS
>  \f3pmrep\f1
> -[\f3\-CdGHLpruUVxz?\f1]
> +[\f3\-CdGHLpruUVxXz?\f1]
>  [\f3\-a\f1 \f2archive\f1]
>  [\f3\--archive-folio\f1 \f2folio\f1]
>  [\f3\-A\f1 \f2align\f1]
> @@ -340,9 +340,9 @@ method which is mostly the same as that described in
>  An empty
>  .I format
>  string (i.e., '') will remove the timestamps from the output.
> -The default with stdout is
> +The default with \fIstdout\fR is
>  .BR %H:%M:%S .
> -The default with csv is
> +The default with \fIcsv\fR is
>  .BR "%Y-%m-%d %H:%M:%S" .
>  .TP
>  .B \-F
> @@ -632,7 +632,7 @@ Omit unit information from of headers.
>  Display version number and exit.
>  .TP
>  .B \-w
> -Set the stdout output column
> +Set the \fIstdout\fR output column
>  .IR width .
>  Strings will be truncated to this width.
>  The default
> @@ -645,6 +645,14 @@ override possible per-metric specifications.
>  .B \-x
>  Print extended header.
>  .TP
> +.B \-X
> +Swap columns and rows in \fIstdout\fR output, reporting one instance per
> +line. This is convenient to allow easily using
> +.BR grep (1)
> +to filter results or to more closely emulate other utilities.
> +See also
> +.BR -i .
> +.TP
>  .B \-y
>  .I Unit/scale
>  for time metrics, possible values include
> diff --git a/src/pmrep/pmrep.conf b/src/pmrep/pmrep.conf
> index fcdd8e5..05142ff 100644
> --- a/src/pmrep/pmrep.conf
> +++ b/src/pmrep/pmrep.conf
> @@ -18,6 +18,7 @@
>  #delay = no
>  #type = default
>  #instances =
> +#colxrow = no
>  #width =
>  #precision = 3
>  #delimiter =
> diff --git a/src/pmrep/pmrep.conf.5 b/src/pmrep/pmrep.conf.5
> index 48550bc..8beb1d3 100644
> --- a/src/pmrep/pmrep.conf.5
> +++ b/src/pmrep/pmrep.conf.5
> @@ -202,6 +202,12 @@ option is \fB-i\fR. Undefined (all current instances
> are reported)
>  by default.
>  .RE
>  .P
> +colxrow (bool)
> +.RS 4
> +Swaps columns and rows in \fIstdout\fR output. Corresponding command line
> +option is \fB-X\fR. Defaults to \fBno\fR.
> +.RE
> +.P
>  width (integer)
>  .RS 4
>  Indicates the width of stdout output columns. Corresponding command line
> diff --git a/src/pmrep/pmrep.py b/src/pmrep/pmrep.py
> index 05110c0..0abef4d 100755
> --- a/src/pmrep/pmrep.py
> +++ b/src/pmrep/pmrep.py
> @@ -174,7 +174,7 @@ class PMReporter(object):
>                       'extheader', 'repeat_header', 'timefmt', 'interpol',
>                       'count_scale', 'space_scale', 'time_scale',
> 'version',
>                       'zabbix_server', 'zabbix_port', 'zabbix_host',
> 'zabbix_interval',
> -                     'speclocal', 'instances')
> +                     'speclocal', 'instances', 'colxrow')
>
>          # Special command line switches
>          self.arghelp = ('-?', '--help', '-V', '--version')
> @@ -206,6 +206,7 @@ class PMReporter(object):
>          self.delay = 0
>          self.type = 0
>          self.instances = []
> +        self.colxrow = 0
>          self.width = 0
>          self.precision = 3 # .3f
>          self.delimiter = None
> @@ -246,7 +247,7 @@ class PMReporter(object):
>          opts = pmapi.pmOptions()
>          opts.pmSetOptionCallback(self.option)
>          opts.pmSetOverrideCallback(self.option_override)
> -        opts.pmSetShortOptions("a:h:LK:c:Co:F:e:D:V?HUGpA:S:T:O:s:
> t:Z:zdri:w:P:l:xE:f:uq:b:y:")
> +        opts.pmSetShortOptions("a:h:LK:c:Co:F:e:D:V?HUGpA:S:T:O:s:
> t:Z:zdri:Xw:P:l:xE:f:uq:b:y:")
>          opts.pmSetShortUsage("[option...] metricspec [...]")
>
>          opts.pmSetLongOptionHeader("General options")
> @@ -281,6 +282,7 @@ class PMReporter(object):
>          opts.pmSetLongOption("delay", 0, "d", "", "delay, pause between
> updates for archive replay")
>          opts.pmSetLongOption("raw", 0, "r", "", "output raw counter
> values (no rate conversion)")
>          opts.pmSetLongOption("instances", 1, "i", "STR", "instances to
> report (default: all current)")
> +        opts.pmSetLongOption("colxrow", 0, "X", "", "swap columns and
> rows in stdout output")
>          opts.pmSetLongOption("width", 1, "w", "N", "default column width")
>          opts.pmSetLongOption("precision", 1, "P", "N", "N digits after
> the decimal separator (if width enough)")
>          opts.pmSetLongOption("delimiter", 1, "l", "STR", "delimiter to
> separate csv/stdout columns")
> @@ -347,6 +349,8 @@ class PMReporter(object):
>              self.type = 1
>          elif opt == 'i':
>              self.instances = self.instances + self.parse_instances(optarg)
> +        elif opt == 'X':
> +            self.colxrow = 1
>          elif opt == 'w':
>              self.width = int(optarg)
>          elif opt == 'P':
> @@ -1034,6 +1038,13 @@ class PMReporter(object):
>
>      def prepare_stdout(self):
>          """ Prepare stdout output """
> +        if not self.colxrow:
> +            self.prepare_stdout_std()
> +        else:
> +            self.prepare_stdout_colxrow()
> +
> +    def prepare_stdout_std(self):
> +        """ Prepare standard formatted stdout output """
>          index = 0
>          if self.timestamp == 0:
>              #self.format = "{:}{}"
> @@ -1058,6 +1069,41 @@ class PMReporter(object):
>          l = len(str(index-1)) + 2
>          self.format = self.format[:-l]
>
> +    def prepare_stdout_colxrow(self):
> +        """ Prepare columns and rows swapped stdout output """
> +        index = 0
> +
> +        # Timestamp
> +        if self.timestamp == 0:
> +            self.format = "{0:}{1}"
> +            index += 2
> +        else:
> +            tstamp = datetime.fromtimestamp(time.
> time()).strftime(self.timefmt)
> +            self.format = "{0:<" + str(len(tstamp)) + "." +
> str(len(tstamp)) + "}{1}"
> +            index += 2
> +
> +        # Instance name
> +        if self.width:
> +            self.format += "{2:<" + str(self.width) + "." +
> str(self.width) + "}{3}"
> +        else:
> +            ts = datetime.fromtimestamp(time.
> time()).strftime(self.timefmt)
> +            self.format += "{2:<" + str(len(ts)) + "." + str(len(ts)) +
> "}{3}"
> +        index += 2
> +
> +        # Metrics
> +        for i, metric in enumerate(self.metrics):
> +            l = str(self.metrics[metric][4])
> +            # Value truncated and aligned
> +            self.format += "{" + str(index) + ":>" + l + "." + l + "}"
> +            index += 1
> +            # Dummy
> +            self.format += "{" + str(index) + "}"
> +            index += 1
> +
> +        # Drop the last dummy
> +        l = len(str(index-1)) + 2
> +        self.format = self.format[:-l]
> +
>      def write_ext_header(self):
>          """ Write extended header """
>          comm = "#" if self.output == OUTPUT_CSV else ""
> @@ -1143,8 +1189,17 @@ class PMReporter(object):
>              names = ["", self.delimiter] # no timestamp on header line
>              insts = ["", self.delimiter] # no timestamp on instances line
>              units = ["", self.delimiter] # no timestamp on units line
> +            if self.colxrow:
> +                names += ["", self.delimiter] # no instance on header line
> +                units += ["", self.delimiter] # no instance on units line
>              prnti = 0
>              for i, metric in enumerate(self.metrics):
> +                if self.colxrow:
> +                    names.append(self.metrics[metric][0])
> +                    names.append(self.delimiter)
> +                    units.append(self.metrics[metric][2][0])
> +                    units.append(self.delimiter)
> +                    continue
>                  prnti = 1 if self.insts[i][0][0] != PM_IN_NULL else prnti
>                  for j in range(len(self.insts[i][0])):
>                      names.append(self.metrics[metric][0])
> @@ -1299,6 +1354,13 @@ class PMReporter(object):
>
>      def write_stdout(self, timestamp):
>          """ Write a line to stdout """
> +        if not self.colxrow:
> +            self.write_stdout_std(timestamp)
> +        else:
> +            self.write_stdout_colxrow(timestamp)
> +
> +    def write_stdout_std(self, timestamp):
> +        """ Write a line to standard formatted stdout """
>          if timestamp == None:
>              # Silent goodbye
>              return
> @@ -1373,6 +1435,126 @@ class PMReporter(object):
>          nfmt = nfmt[:-l]
>          self.writer.write(nfmt.format(*tuple(line)) + "\n")
>
> +    def write_stdout_colxrow(self, timestamp):
> +        """ Write a line to columns and rows swapped stdout """
> +        if timestamp == None:
> +            # Silent goodbye
> +            return
> +
> +        # Collect the instances in play
> +        insts = []
> +        for i in range(len(self.metrics)):
> +            for instance in self.insts[i][1]:
> +                if instance not in insts:
> +                    insts.append(instance)
> +
> +        # Avoid crossing the C/Python boundary more than once per metric
> +        res = OrderedDict()
> +        for i, metric in enumerate(self.metrics):
> +            res[metric] = []
> +            try:
> +                for inst, name, val in self.metrics[metric][5]():
> +                    try:
> +                        res[metric].append([inst, name, val()])
> +                    except:
> +                        res[metric].append([inst, name, NO_VAL])
> +                if not res[metric]:
> +                    res[metric].append(['', '', NO_VAL])
> +            except:
> +                res[metric].append(['', '', NO_VAL])
> +
> +        # Avoid per-line I/O
> +        output = ""
> +
> +        # Painfully iterate over what we have, the logic below
> +        # being that we need to construct each line independently
> +        for instance in insts:
> +            # Split on dummies
> +            fmt = re.split("{\\d+}", self.format)
> +
> +            # Start a new line
> +            k = 0
> +            line = []
> +
> +            # Add timestamp as wanted
> +            if self.timestamp == 0:
> +                line.append("")
> +            else:
> +                line.append(timestamp)
> +            line.append(self.delimiter)
> +            k += 1
> +
> +            # Add instance
> +            line.append(instance)
> +            line.append(self.delimiter)
> +            k += 1
> +
> +            # Look for this instance from each metric
> +            for metric in self.metrics:
> +                l = self.metrics[metric][4]
> +
> +                found = 0
> +                value = NO_VAL
> +                for inst in res[metric]:
> +                    if inst[1] == instance:
> +                        # This metric has the instance we're
> +                        # processing, grab it and format below
> +                        value = inst[2]
> +                        found = 1
> +                        break
> +
> +                if not found:
> +                        # Not an instance this metric has,
> +                        # add a placeholder and move on
> +                        line.append("")
> +                        line.append(self.delimiter)
> +                        k += 1
> +                        continue
> +
> +                # Make sure the value fits
> +                if type(value) is int or type(value) is long:
> +                    if len(str(value)) > l:
> +                        value = TRUNC
> +                    else:
> +                        fmt[k] = "{X:" + str(l) + "d}"
> +
> +                if type(value) is float and not math.isinf(value):
> +                    c = self.precision
> +                    s = len(str(int(value)))
> +                    if s > l:
> +                        c = -1
> +                        value = TRUNC
> +                    for f in reversed(range(c+1)):
> +                        r = "{X:" + str(l) + "." + str(c) + "f}"
> +                        t = "{0:" + str(l) + "." + str(c) + "f}"
> +                        if len(t.format(value)) > l:
> +                            c -= 1
> +                        else:
> +                            fmt[k] = r
> +                            break
> +
> +                # Finally add the value
> +                line.append(value)
> +                line.append(self.delimiter)
> +                k += 1
> +
> +            # Print the line in a Python 2.6 compatible manner
> +            del line[-1]
> +            index = 0
> +            nfmt = ""
> +            for f in fmt:
> +                if type(line[index]) is float and math.isinf(line[index]):
> +                    line[index] = "inf"
> +                nfmt += f.replace("{X:", "{" + str(index) + ":")
> +                index += 1
> +                nfmt += "{" + str(index) + "}"
> +                index += 1
> +            l = len(str(index-1)) + 2
> +            nfmt = nfmt[:-l]
> +            output += nfmt.format(*tuple(line)) + "\n"
> +
> +        self.writer.write(output)
> +
>      def write_zabbix(self, timestamp):
>          """ Write (send) metrics to a Zabbix server """
>          if timestamp == None:
> diff --git a/src/zshrc/_pcp b/src/zshrc/_pcp
> index b625164..6f81073 100644
> --- a/src/zshrc/_pcp
> +++ b/src/zshrc/_pcp
> @@ -440,6 +440,7 @@ _pcp () {
>        "(-d --delay --container -h --host -L --local-PMDA -K --spec-local
> -u --no-interpol $exargs)"{-d,--delay}'[delay between updates in archive
> mode]' \
>        "(-r --raw $exargs)"{-r,--raw}'[report raw values]' \
>        "($exargs)"\*{-i+,--instances}'[specify instances to
> report]:instances:->instances' \
> +      "(-X --colxrow $exargs)"{-X,--colxrow}'[swap columns and rows in
> stdout output]' \
>        "(-w --width $exargs)"{-w+,--width}'[set default column
> width]:width:' \
>        "(-P --precision $exargs)"{-P+,--precision}'[set floating point
> precision]:precision:' \
>        "(-l --delimiter $exargs)"{-l+,--delimiter}'[set column
> delimiter]:delimiter:' \
>
> Thanks,
>
> --
> Marko Myllynen
>
> 
>
>
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