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| author | Ronnie Sahlberg <ronnie_sahlberg@ozemail.com.au> | 2011-06-07 10:27:44 +0000 |
|---|---|---|
| committer | Ronnie Sahlberg <ronnie_sahlberg@ozemail.com.au> | 2011-06-07 10:27:44 +0000 |
| commit | 9164a7f892859b44deb19379f52e7d5dce93be50 (patch) | |
| tree | 80656fecb373f2c44f488b447198a84625f62357 | |
| parent | 13743add73a50f996b01a1a0556ea2f31f270b0a (diff) | |
Add description of LOAD stats for tshark to the manpage
svn path=/trunk/; revision=37587
| -rw-r--r-- | doc/tshark.pod | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/doc/tshark.pod b/doc/tshark.pod index 5929556876..6fcb0d8216 100644 --- a/doc/tshark.pod +++ b/doc/tshark.pod @@ -768,9 +768,9 @@ The examples above all use the standard syntax for generating statistics which only calculates the number of packets and bytes in each interval. B<io,stat> can also do much more statistics and calculate COUNT(), SUM(), -MIN(), MAX(), and AVG() using a slightly different filter syntax: +MIN(), MAX(), AVG() and LOAD() using a slightly different filter syntax: -=item -z io,stat,E<34>[COUNT|SUM|MIN|MAX|AVG](I<field>)I<field> [and I<filter>]E<34> +=item -z io,stat,E<34>[COUNT|SUM|MIN|MAX|AVG|LOAD](I<field>)I<field> [and I<filter>]E<34> NOTE: One important thing to note here is that the field that the calculation is based on MUST also be part of the filter string or @@ -854,6 +854,29 @@ the total number of bytes transferred in SMB Write PDUs: 000.000- 30018 28067522 72 3240 ===================================================================================== +B<LOAD(I<field>)I<field> [and I<filter>]> - The LOAD/Queue-Depth +in each interval is calculated. The specified field must be a relative-time filed that represents a response time. For example smb.time. +For each interval the Queue-Depth for the specified protocol is calculated. + +The following command displays the average SMB LOAD. +A value of 1.0 represents one I/O in flight. + + tshark -n -q -r smb_reads_writes.cap + -z "io,stat,0.001,LOAD(smb.time)smb.time" + + ============================================================================ + IO Statistics + Interval: 0.001000 secs + Column #0: LOAD(smb.time)smb.time + | Column #0 | + Time | LOAD | + 0000.000000-0000.001000 1.000000 + 0000.001000-0000.002000 0.741000 + 0000.002000-0000.003000 0.000000 + 0000.003000-0000.004000 1.000000 + + + B<FRAMES | BYTES[()I<filter>]> - Displays the total number of frames or bytes. The filter field is optional but if included it must be prepended with ''()''. |