The algorithms tag has no wiki summary.
1
vote
4answers
670 views
Grepping over a huge file performance
I have FILE_A which has over 300K lines and FILE_B which has over 30M lines.
I created a bash script that greps each line in FILE_A over in FILE_B and writes the result of the grep to a new file.
...
13
votes
1answer
1k views
Why isn't a straightforward 1/5/15 minute moving average used in Linux load calculation?
Until recently i thought the load average (as shown for example in top) was a moving average on the n last values of the number of process in state "runnable" or "running". And n would have been ...
7
votes
3answers
390 views
Why does it makes sense to cache swap?
It sounds quite counter-productive to me to cache pages that are swapped out. If you swap pages in, what is the advantage to first cache them in memory, only to have to than move them to the right ...
