Please ignore the message below ====== line. I just left if for other peoples reference.
It turned out that the cause of system performance degradation was a commercial virus checker. And excluding all the MC related folders from virus checking solved the problem.
If someone else experience MC gets slow down, just disable virus checking program and see if the problem persists.
Attached log file shows how much MC slows down the PC when the process "System" uses over 50% CPU when loading a chart.
PC spec: Pentium 4 3.2 GHz with 1GB memory, Win XP SP2
MC started plotting the workspace sha.wsp having 4 charts from 20:15:14 and finished at 23:24:39. It took about 3 hours 10 minutes!!!
Especailly symbol SanghaiA_Index started from 20:27:15 and finished at 23:24:39.
The "System" process seems to be the main cause of this slow down.
In normal cases, "System" use only a small portion of CPU and tsServer uses most of CPU. However once "System" dominates the CPU, all other processes including tsServer use very little CPU.
Somehow log file is not uploaded after several attepms.
I can show it via HD.
Log fils showing "System" process slows down the w
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