Berkeley CSUA MOTD:Entry 26828
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2024/11/23 [General] UID:1000 Activity:popular
11/23   

2002/12/16-17 [Computer/HW/CPU] UID:26828 Activity:high
12/15   is there a rule of thumb that relates the processor speed/type
        to the number of interrupts it can handle per second without
        significantly affecting its performance? specifically, I'm
        wondering if about 1000/s (i.e. 1 kHz) is too much for a P II.
        \_ what is too much?
                \_ 1000 interrupts/second...is that too much?
                   \_ what is your definition of too much?  the cpu keels
                      over and dies?  latency or throughput drops to a
                      certain level?  what level?   but like the next poster
                      said, depends on your isr, your driver, etc.
                        \_ I want it free enough so that another program can
                           be in the foreground and active. BTW, it's Win2k.
                           And I don't want to just measure it and see b/c
                           I want to know whether I should embark on writing
                           the ISR in the first place.
                           \_ what is your foreground program doing?  what
                              does active mean anyway?  see, this is a silly
                              discussion, and you have to go and do performance
                              measurements.  tanstaafl.
        \_ That also depends on how efficient the OS is in handling interrupts.
        \_ measure it and see?
2024/11/23 [General] UID:1000 Activity:popular
11/23   

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