Messages in this thread | | | Date | Tue, 15 Nov 2005 10:24:25 -0700 | From | evan@coolrunn ... | Subject | Timer idea |
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I was thinking about benchmarking, profiling, and various other applications that might need frequent access to the current time. Polling timers or frequent timer signal delivery both seem like there would be a lot of overhead. I was thinking it would be nice if you could just read the time information without making an OS call.
I figure the kernel keeps accurate records of current time information and the values of various timers. I then had the idea that one could have a /dev or maybe a /proc entry that would allow you to mmap() the kernel records (read only) and then you could read this information right from the kernel without any overhead.
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