bugGNU Parallel - build and execute command lines from standard input in parallel - Bugs: bug #38110, parallel --pipe not very parallel


bug #38110: parallel --pipe not very parallel

Submitted by:  None
Submitted on:  Thu 17 Jan 2013 09:53:38 PM UTC  
Category: NoneSeverity: 3 - Normal
Item Group: NoneStatus: Wont Fix
Privacy: PublicAssigned to: Ole Tange <tange>
Open/Closed: Closed

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Thu 24 Jan 2013 11:45:08 PM UTC, comment #1:

$ seq 10000 | wc
10000 10000 48894

48894 is less than default --block-size (1M), so the behaviour is as expected: Spawn only one.

Not a bug.

Ole Tange <tange>
Project AdministratorIn charge of this item.
Thu 17 Jan 2013 09:53:38 PM UTC, original submission:

Before commit bbc9a53ea5fc746a0a3ef7e8733dfcd61ff05eea

seq 10000 |src/parallel --pipe -j24 sleep 10

would spawn 24 processes as counted by something like

pgrep sleep | wc

After aforementioned commit, only 1 process is spawned.



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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Thu 24 Jan 2013 11:45:08 PM UTCtangeStatusNone=>Wont Fix
      Assigned toNone=>tange

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