View Issue Details

IDProjectCategoryView StatusLast Update
0004490ardourbugspublic2011-12-27 19:54
ReporterWillyKaze Assigned To 
PrioritynormalSeveritymajorReproducibilityalways
Status closedResolutionfixed 
Target Version3.0-beta2 
Summary0004490: Stem export produces 1s of exported tracks in 20seconds
DescriptionStem export is incredibly slow.
Additional Information[willykaze@leone ~]$ uname -a
Linux leone 3.1.0-4-ARCH 0000001 SMP PREEMPT Mon Nov 7 23:21:44 CET 2011 i686 AMD Phenom(tm) II X4 955 Processor AuthenticAMD GNU/Linux
TagsNo tags attached.

Activities

cth103

2011-11-19 11:08

administrator   ~0012124

Which version of JACK are you using? How many tracks are you trying to export? What is the CPU usage like when it is exporting?

WillyKaze

2011-11-23 12:21

reporter   ~0012185

[willykaze@leone ~]$ jackd -v
jackdmp 1.9.8

I'm trying to export 20 tracks, but i got same issue when exporting 1 track.

When ardour 3 is launched, I have 0000033:0000015% CPU usage, but starting Stem export make CPU usage falling to ~2%.

WillyKaze

2011-11-29 13:26

reporter   ~0012232

Same issue on ardour 2 when trying to export ranges to multiple audio files (Ogg)
JackPosixSemaphore: Err = Connection Timed out. (jackdmp 1.9.7)

danboid

2011-12-01 17:12

reporter   ~0012252

Last edited: 2011-12-01 17:14

Maybe this is a JACK 2 issue as I just tried this on an i3 running JACK 1 (0.121.2) but with the same kernel version albeit under Deb Testing amd64. Exporting 2 ~4m tracks took about the same length of time it took to export a single track using the regular export option - about 10s.

I tried this under A3 10845

WillyKaze

2011-12-27 19:54

reporter   ~0012476

Using jack1 instead of jack2 solved my issue.

Issue History

Date Modified Username Field Change
2011-11-18 19:15 WillyKaze New Issue
2011-11-18 19:42 cth103 cost => 0.00
2011-11-18 19:42 cth103 Target Version => 3.0-beta2
2011-11-19 11:08 cth103 Note Added: 0012124
2011-11-19 11:08 cth103 Status new => feedback
2011-11-23 12:21 WillyKaze Note Added: 0012185
2011-11-29 13:26 WillyKaze Note Added: 0012232
2011-11-29 13:26 WillyKaze Status feedback => new
2011-12-01 17:12 danboid Note Added: 0012252
2011-12-01 17:14 danboid Note Edited: 0012252
2011-12-27 19:54 WillyKaze Note Added: 0012476
2011-12-27 19:54 WillyKaze Status new => closed
2011-12-27 19:54 WillyKaze Resolution open => fixed