search for: 30msec

Dear all R users, I am going to use R to process some of my physiological data about eye. The problem is the recording machine does not sample in a reliably constant rate: the time intervals between data sampled can vary from 9msec to ~120msec, while most around in the 15-30msec range. The below is a fraction of a single data file of a trial: Time CursorX CursorY Pupilsize 1811543 -1 -1 -1 1811563 -1 -1 -1 1811584 511 370 4.175665 1811603 511 368 4.181973 1811624 521 368 4.210732 1811644 512 377 4.149632 1811664 524 377 4.275845 1811684 518 368 4.236212 1811703 516 370 4....

...llowing case on 2pcpu environment. (with 4domains (each domain has 2vcpus)) dom1 vcpu0,1 w128 credit 4 dom2 vcpu0,1 w128 credit 4 dom3 vcpu0,1 w256 credit 8 dom4 vcpu0,1 w512 credit 15 d4v0 gets 15ms credit each time. but if 3vcpus are blocking,(like d1v0, d2v0, d3v0) d4v0 credit becomes over 30msec(45msec=15x3times). Then d4v0 credit cleared. This makes d4v0 uses smaller credit than expected. This problem also occurs on d4v1 case. (blocked by d1v1, d2v1, d3v1) In my case, xentop shows following % for each domain. dom1 27 dom2 28 dom3 53 dom4 88 After this patch applied, each domain has fol...