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  • 10 votes cast
Nov
2
comment Is there a way to determine the optimal value for the bs parameter to dd?
I have access to a 24 drive RAID50 here, where bs=8K gets me 197MB/s but bs=1M gets me 2.2 GB/s which is close to the theoretical throughput of the RAID. So bs matters ALOT. However using bs=10M I only get 1.7GB/s. So it appears to get worse over some threshold, but not sure why.
Oct
30
comment How do you empty the buffers and cache on a Linux system?
@slm - I'm on Ubuntu 14.04 but I only seem to have fallocate in my $PATH. Do you know if the others are available without me running a newer kernel? Or can I download the kernel sources and only compile those utils?
Oct
30
awarded  Commentator
Oct
30
comment How do you empty the buffers and cache on a Linux system?
Is linux-ftools maintained anymore? Their repo on google code is frozen because google shut everything down.
Jul
2
awarded  Curious
May
17
comment Retrieve the window name and role
Does X require every window to have those attributes? If you don't see them when running xprop on them then it may be the case that they're just missing for those windows.
Aug
26
awarded  Popular Question
Nov
14
comment Easiest way to find/replace in a file using a list?
@Omnifarious: Just what the regex matches
Nov
12
comment Easiest way to find/replace in a file using a list?
@ChrisDown: Sorry about that, I've rephrased, think it's clearer now.
Nov
12
revised Easiest way to find/replace in a file using a list?
simplify
Nov
12
asked Easiest way to find/replace in a file using a list?
Oct
6
awarded  Good Question
Aug
17
asked Executing zsh rehash after build
Aug
17
comment How to have find only search for files in changed directories?
For clarity I ended up doing two finds with a loop, but I used the maxdepth trick on the inner find so they're functionally the same. Thanks :)
Aug
17
accepted How to have find only search for files in changed directories?
Aug
16
asked How to have find only search for files in changed directories?
Apr
28
awarded  Yearling
Nov
7
accepted How to list all running X applications?
Nov
7
awarded  Editor
Nov
7
revised How to list all running X applications?
depersonify title