%Nick Hibma wrote:
%>
%> Being multi-threaded has almost nothing to do with being
%> multi-processor. Multi-threading means that your application has
%> multiple threads of execution that are able to run simultaneously.
%>
%> The multi-processing capability of your box means that 2 threads of
%> execution, be it a process or a thread within a process, are executed
%> _literally_ at the same time, and not in simulated concurrency like it
%> happens on a UP box.
%
%Note that this happens ONLY if both threads of execution are processor
%mobile. If your system supports user-space threads as part of a
%process and the process can't be split across CPUs, you might as well
%have a UP system. (Except everything else can run on the other
%processor, so SMP is still a small win.)
%
%This is the situation with threads and SMP in -current.
%
The LinuxThreads port is currently busted for SMP but when it
is fixed it will indeed use multiple processors:
last pid: 395; load averages: 0.50, 0.11, 0.04 up
0+00:13:00 20:00:40
37 processes: 6 running, 31 sleeping
CPU states: 65.8% user, 0.0% nice, 0.0% system, 0.0% interrupt, 34.2% idle
Mem: 8780K Active, 9116K Inact, 19M Wired, 68K Cache, 7000K Buf, 466M Free
Swap: 1024M Total, 1024M Free
PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU CPU COMMAND
393 rcarter 31 0 876K 152K CPU1 1 0:01 17.16% 2.39% ex3
394 rcarter 29 0 876K 152K RUN 0 0:00 15.76% 2.20% ex3
391 rcarter 30 0 876K 152K RUN 1 0:01 14.71% 2.05% ex3
395 rcarter 30 0 876K 152K RUN 0 0:01 14.01% 1.95% ex3
392 rcarter 30 0 876K 152K RUN 0 0:00 13.66% 1.90% ex3
Russell
%--
% "Where am I, and what am I doing in this handbasket?"
%
%Wes Peters Softweyr LLC
[EMAIL PROTECTED] http://softweyr.com/
%
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