Jiffie
A jiffie is a count of the number of clock interrupts that have occured. It is not an absolute time interval unit, since its duration depends on the clock interrupt frequency of the particular hardware platform under review.
Within the Linux 2.6 operating system kernel, on the Intel i386 platform, a jiffie is 1 ms, or 1/1000th of a second. It is different on other hardware platforms. For example, on Sparc, it is 10 ms.
Jiffies are used to report timing stats for processes in the /proc (pseudo-)filesystem in the Linux kernel.
See also
External links
- KernelAnalysis-HOWTO-6 (Be aware that HZ has gone from 100 to 1000 since that article was written.)
Categories: Computer stubs