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33
votes
15answers
5k views

Run unix command precisely at very short intervals WITHOUT accumulating time lag over time

Question I'd like to be able to run a UNIX command precisely every second over a long time period. I need a solution, which does not lag behind after a certain time, because of the time the command ...
4
votes
1answer
188 views

linux patches related to time measurement accuracy?

Is there a set of patches around for linux kernel that address accuracy of (system, rather than user) process time? i've heard about RTLinux, but i don't really need the actual real-time scheduling ...
2
votes
3answers
2k views

How to merge output of two running log files in real-time

I have been analysing how a Linux USB driver works using two disparate methods: examining the output of usbmon, which is a hex dump-ish view of what's being sent "on the wire". adding printk() ...