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<TITLE>Upgrade Oddity</TITLE>
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<P><FONT SIZE=2>Hello All,</FONT>
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<P><FONT SIZE=2>I recently upgraded from MS 4.22-5 to 4.26.8-1. I have very similar to default configuration and accepted the defaults for all of the new options available. </FONT></P>
<P><FONT SIZE=2>I have noticed (via mailscanner-mrtg graphs) a significant load increase coming in drastic spikes during the day. The intervals aren't that regular but they do appear to be almost hourly. Typicaly the load value will hover between 0 and 1. But, now, during the day I can see it create a peak over the course of 40 minutes to an hour that hits consistently around 5. The only significant process I am running hourly is mailscanner-mrtg (version 0.05). </FONT></P>
<P><FONT SIZE=2>I am running 2 dns load balanced servers, both dual 2.4g xeons with 2.5GB memory processing somewhere around 100K messages per day each. Here are my stats for cpu/mem right off msmrtg.</FONT></P>
<P><FONT SIZE=2>BOX 1</FONT>
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<P><FONT SIZE=2>Max CPU Utilization: 30.0 percent Average CPU Utilization: 6.0 percent Current CPU Utilization: 11.0 percent </FONT></P>
<P><FONT SIZE=2>Max memory including cache: 2552.0 Megabytes Average memory including cache: 2452.0 Megabytes Current memory including cache: 2529.0 Megabytes </FONT></P>
<P><FONT SIZE=2>Max memory excluding cache: 932.0 Megabytes Average memory excluding cache: 853.0 Megabytes Current memory excluding cache: 894.0 Megabytes </FONT></P>
<P><FONT SIZE=2>BOX 2</FONT>
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<P><FONT SIZE=2>Max CPU Utilization: 35.0 percent Average CPU Utilization: 5.0 percent Current CPU Utilization: 19.0 percent </FONT></P>
<P><FONT SIZE=2>Max memory including cache: 2563.0 Megabytes Average memory including cache: 2454.0 Megabytes Current memory including cache: 2489.0 Megabytes </FONT></P>
<P><FONT SIZE=2>Max memory excluding cache: 891.0 Megabytes Average memory excluding cache: 784.0 Megabytes Current memory excluding cache: 779.0 Megabytes </FONT></P>
<P><FONT SIZE=2>Does anyone have any ideas as to what might be causing the load average spikes? I am not suffereing from performance issues but I was hoping to be able to scale these boxes a little further and this limits my options a bit. </FONT></P>
<P><FONT SIZE=2>Thanks in advance.</FONT>
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<P><FONT SIZE=2>Jason</FONT>
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