Bug#707234: [doxygen] try DOT_NUM_THREADS = 1

2013-08-23 Thread Paolo Greppi 
Package: doxygen
Version: 1.8.1.2-2

DOT_NUM_THREADS = 0 means autodetect. On bare metal it does make sense
to use more threads than cores, in the assumption than disk will be the
bottleneck.

This can be counterproductive on VMs, I agree.

I suggest you try to force it with DOT_NUM_THREADS = 1; I tried here and
it seems there is only one dot process at a time.

--- System information. ---
Architecture: i386
Kernel:   Linux 3.2.0-4-686-pae

Debian Release: 7.1
  500 stable-updates  mi.mirror.garr.it
  500 stable  security.debian.org
  500 stable  mi.mirror.garr.it

--- Package information. ---
Depends(Version) | Installed
-+-==
libc6  (= 2.3.6-6~) | 2.13-38
libgcc1 (= 1:4.1.1) | 1:4.7.2-5
libstdc++6(= 4.1.1) | 4.7.2-5


Recommends (Version) | Installed
-+-===
doxygen-latex| 1.8.1.2-2


Suggests (Version) | Installed
==-+-===
doxygen-doc| 1.8.1.2-2
doxygen-gui| 1.8.1.2-2
graphviz   | 2.26.3-14


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Bug#707234: [doxygen] try DOT_NUM_THREADS = 1

2013-08-23 Thread Lisandro Damián Nicanor Pérez Meyer 
On Friday 23 August 2013 19:17:07 Paolo Greppi wrote:
 Package: doxygen
 Version: 1.8.1.2-2
 
 DOT_NUM_THREADS = 0 means autodetect. On bare metal it does make sense
 to use more threads than cores, in the assumption than disk will be the
 bottleneck.
 
 This can be counterproductive on VMs, I agree.
 
 I suggest you try to force it with DOT_NUM_THREADS = 1; I tried here and
 it seems there is only one dot process at a time.

Indeed that's what I'm actually using. I think this bug can be set to severity 
wishlist and be retitled to Please explain that 0 will use n+1 processors.

Thanks a lot!

-- 

Lisandro Damián Nicanor Pérez Meyer
http://perezmeyer.com.ar/
http://perezmeyer.blogspot.com/


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