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24 lines
1.3 KiB
Groff
24 lines
1.3 KiB
Groff
.SH "SUNOS 4 DIFFERENCES"
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On multiprocessor machines, the amount of time the processors spend in
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a spin lock is displayed along with the other processor state
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percentages. The percentages shown for processor states are averages
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across all processors. A process in run state also has its current
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processor displayed in the STATE column, for example "run/2" indicates
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running on processor 2. There is an extra column in the process
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display indicating which processor each running process is assigned
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to. Information about physical memory is displayed on the memory
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status line, but information about virtual memory is not available.
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Due to incompatabilities in kernel data structures, a top executable
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compiled on a Sun 4 multiprocessor architecture machine (sun4m) will
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not run correctly on a uniprocessor architecture machine (sun4), and
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vice versa. You will have to compile and maintain separate executables
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for these architectures. Yeah, I don't like it either.
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Some processes may show up with a resident set size (RES column) larger
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than total virtual memory size (SIZE column). This seems odd at first,
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but is a consequence of shared libraries: shared memory is counted as
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resident but is not counted in total size.
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The SunOS 4 port was written by William LeFebvre.
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