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<p class="MsoNormal">Hi<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have committed v2.37 today, this has a big performance related fix and other fixes – thanks to SebA <<a href="mailto:spah@syntec.co.uk">spah@syntec.co.uk</a>> and Andy
<a href="mailto:abs@shadymint.com">abs@shadymint.com</a> for extra work and prompting in this area.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a href="https://sourceforge.net/p/xymon/code/HEAD/tree/sandbox/WinPSClient/">Download from SVN</a> (the documentation has been updated also, including uninstall instructions).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The key fixes are:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">* replaced WMI call to get number of processors with Windows API call<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The WMI call to get processor information was taking anything from 4-5 seconds on most of my VMs, some experience much longer waits and high CPU usage while this WMI call executed. There have also been instances where the WMI call returns
incorrect data or no data. This has been replaced with a call to GetNativeSystemInfo(), which should work on 32-bit and 64-bit platforms and in testing executes in milliseconds.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">* only supply diskpart data if EnableDiskPart = 1<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There is a test in the client which uses ‘diskpart’ to gather information about clustering every slow scan. This is included in the data sent to Xymon, but it’s not generally displayed – you can extract it for reporting if needed. Hardly
anyone uses this and for some reason for some people it is causing memory issues in the Microsoft Virtual Disk Service. Therefore by default the test will now not be run, you can enable it with the EnableDiskPart setting in xymonclient_config.xml.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">* add a dummy, ignored config item in the internal client-local config table so that there is always some configuration present (even if nothing in the server-side client-local for this host)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">We found that if there is no client-local.cfg for the host and no default client-local.cfg (like [powershell] or [XymonPS]), on some platforms there appears to be a memory leak. The fix ensures there is always something in the internal
cache of client-config even if nothing is received from the server.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">* XymonAcceptUTF8 - default (0) is now to use the original ASCII encoding, added setting for 'pure' ASCII coding which strips/converts diacritic characters<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Prior to this version, by default, the client uses ASCII encoding to send to the server but also attempts to encode/filter diacritic characters. This was added in v2.20, and for some people it adds a large time overhead when sending data.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It’s been changed so that the default setting of 0 acts like it did before v2.20 – no diacritic encoding – I’m calling this ‘original’ ASCII encoding. XymonAcceptUTF8 = 1 is unchanged, uses UTF8. XymonAcceptUTF8 = 2 is the v2.20 setting,
use ASCII and encode/filter diacritics – I’m calling this ‘pure’ ASCII encoding. I don’t think this will impact on many people other than saving time/cpu for the default setting.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Full changelog:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">v2.37<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* replaced WMI call to get number of processors with Windows API call<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* fixed servicecheck parentheses<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* use TLS for uploading data to xymoncgi if using http reporting and URL begins https<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* add milliseconds to log timestamp<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* add a dummy, ignored config item in the internal client-local config table so that there is always some configuration present (even if nothing in the
server-side client-local for this host)<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* fix a couple of instances where we were using variables before they are assigned<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">settings changes/additions:<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* XymonAcceptUTF8 - default (0) is now to use the original ASCII encoding, added setting for 'pure' ASCII coding which strips/converts diacritic characters<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New"">* only supply diskpart data if EnableDiskPart = 1<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:8.5pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:EN-GB">Zak <o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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