1 | # $Id$
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2 |
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3 | NETPERF CHANGES
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4 |
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5 | 2.4.4 (2008-03-30)
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6 | - The LOC_CPU and REM_CPU tests will report their respective beliefs
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7 | as to the number of CPUs present when the verbosity is set to more
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8 | than one. This can be used when trying to diagnose issues with CPU
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9 | utilization.
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10 | - A kind soul who wishes to remain anonymous provided a patch to
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11 | enable use of sendfile() on OSX.
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12 | - Fix a misplaced \n in a format string of send_tcp_maerts, courtesy
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13 | of Alexander Duyck.
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14 | - There is an experimental global -r option which will allow one to
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15 | include CPU utilization measurements, but make the decision about
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16 | hitting confidence based on the result only. The test banner will
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17 | reflects this when -r is used.
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18 | - It is no longer necessary to specify a file with the global -F
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19 | option when running a _SENDFILE test. Netperf will create a
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20 | temporary file and populate it with random data and use that. If
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21 | running aggregate tests it is strongly suggested one use a -F
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22 | option. Otherwise, the overhead spent creating and populating the
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23 | temporary file will be included in the CPU utilization calculation.
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24 | - The configure script recognizes Solaris 11 and selects the correct
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25 | CPU utilization mechanism - or rather it selects the same mechanism
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26 | as is used in Solaris 10. Fix courtesy of Andrew Gallatin.
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27 | - Convert a number of struct sockaddr_in's to struct
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28 | sockaddr_storage's and add requisite casts to deal with some abort
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29 | problems on Windows and perhaps other platforms as well. Kudos to
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30 | Alexander Duyck.
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31 | - One can now pass a value of 'x' to the global -f option to specify
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32 | the units as transactions per second. This is the default for any
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33 | request/response test, which is determined by there being a "double
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34 | `r'" in the name - eg "RR," "rr," "Rr," or "rR." At present only
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35 | the TCP_RR test actually looks for this to be set.
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36 | - One can request bits/bytes per second as the primary output of a
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37 | TCP_RR test by setting the global -f option to [kmgKMG] as with any
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38 | of the "STREAM" tests. This converts the primary throughput metric
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39 | to a bitrate (byterate) following the verbosity rules for a STREAM
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40 | test. Service demand remains usec/Transaction regardless of the
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41 | setting of the global -f option.
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42 | A verbosity level of 2 or more will cause the TCP_RR test to report
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43 | calculated average RTT latency, transaction rate, and inbound and
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44 | outbound transfer rates regardless of the primary units selected
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45 | with the global -f paramter. If the primary output is transactions
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46 | per second, the reported inbound and outbound transfer rates will
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47 | be 10^6 bits per second, otherwise, they honor the setting of the
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48 | global -f option.
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49 | All of this is EXPERIMENTAL and subject to change without prior
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50 | notice in future versions of netperf.
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51 | - Replace "break" with "break 2" in acinclude.m4 for a socklen macro
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52 | - The default for the requested socket buffer size is changed from 0
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53 | to -1 to enable passing a value of 0 under Windows, which tells that
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54 | stack one wishes to enable copy-avoidance.
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55 | - Call fflush() on each interim result displayed in demo mode to make
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56 | things happier for folks redirecting same to a file. From Dan
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57 | Yost.
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58 | - In theory each distinct netserver child will have a debug log with
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59 | its pid appended to the name, somewhat like what appears to happen
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60 | under Windows.
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61 | - A new global, command-line option to netperf and netserver has been
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62 | added. The -V option will cause netperf/netserver to display its
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63 | version and exit.
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