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Re^5: Threads From Hell #2: How To Parse A Very Huge Fileby karlgoethebier (Abbot) |
on May 26, 2015 at 10:35 UTC ( [id://1127794]=note: print w/replies, xml ) | Need Help?? |
"...the elapsed time when the processor is doing nothing..." Yes. I asked the oracle: "The term "real time" in this context refers to elapsed "wall clock" time, like using a stop watch. The total CPU time (user time + sys time) may be more or less than that value. Because a program may spend some time waiting and not executing at all (whether in user mode or system mode) the real time may be greater than the total CPU time. Because a program may fork children whose CPU times (both user and sys) are added to the values reported by the time command, but on a multicore system these tasks are run in parallel, the total CPU time may be greater than the real time." "...justifies the premium prices you pay for Apple hardware." Did you already order your first Mac ;-) "...Do you remember when I said a few days ago..." Indeed. Best regards, Karl Edit: Fixed typo. P.S.: I'm thinking already about episode #3 of "Threads From Hell". «The Crux of the Biscuit is the Apostrophe»
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