wait

Brendan D. Gregg (author of DTrace book) has interesting variant of profiling: the "Off-CPU" profiling (and Off-CPU Flame Graph ; slides 2013, p112-137 ) to see, where the thread or application were blocked (was not executed by CPU, but waiting for I/O, pagefault handler, or descheduled due short of CPU resources): This time reveals which code-paths are blocked and waiting while off-CPU, and for how long exactly. This differs from traditional profiling which often samples the activity of threads at a given interval, and (usually) only examine threads if they are executing work on-CPU. He also

来源： https://www.cnblogs.com/simly/p/11531963.html

Can someone please show me a code example about how to get a long click (2 sec for example) on the volume up hardware key? Thanks :) EDIT The class that i want to capture the long click with is a Service. How can i do that? MAV If you just need to capture long clicks, this answer might be helpful: https://stackoverflow.com/a/5269673/1401257 EDIT: I have never tried to have a key listener inside a service, but with a little help from Google I found this: Volume change listener? It seems that normal key events can only be handled from Activities. I do not have time to try this out myself, but

I want to fire off multiple commands within a loop in a batch file like this: for /l %%x in (20170101,1,20170105) do ( start /wait C:\Progra~1\Amazon\AWSCLI\aws s3 cp s3://bucket1/%%x s3://bucket2/%%x --recursive ) #do something else here only when ALL the above commands complete Will the Start /wait have the effect of waiting until all commands complete before moving to next line after the loop? start /wait isn't "global", it just waits for the started process to finish (maybe... depends on how the application is programmed). What you need (starting several processes in parallel and wait

I want the user to choose data before analyzing the data but I can't get the code right to wait for user input… check<-0 count<-0 data.choice<-function(){ while(check < 1 ){ check <-as.numeric(readline('Choose 1 or 2 for analysing Data1 or Data2 respectively: \n 1. "Data1" \n 2. "Data2" ')); check <- ifelse(grepl("\\D",check),-1,as.integer(check)) if(is.na(check)|check>2|count>3){ count<-count+1 print('Please type only 1 or 2...') break} # breaks when hit enter } } data.choice() At this point it should display Choose 1 or 2 for analysing cells or exosomes respectively: 1. Data1 Data2 and WAIT

Hy! So I'm starting with netbeans java gui development and I have run into this problem: I have made a window with a button and a text field. When the user clicks the button I want the text field to start typing itself with a delay. So for example: textfield.text=h wait(1) sec textfield.text=he wait(1) sec textfield.text=hel wait(1) sec textfield.text=hell wait(1) sec textfield.text=hello I have already tried with Thread.sleep() , but in the example above it waits 4 seconds or so and after that displays the whole text (so it's not giving me the typo effect that I would want). Can somebody help