- Status Closed
- Percent Complete
- Task Type Patches
- Category Codecs
- Assigned To No-one
- Operating System All players
- Severity Low
- Priority Very Low
- Reported Version Daily build (which?)
- Due in Version Undecided
-
Due Date
Undecided
- Votes
- Private
FS#9000 - further mpc optimization for PP5020/24 and iaudio m5/x5
1. Use iram for calc_new_V() which is part of the synthesis filter.
2. Minor resorting within calc_new_V() reduces binsize a bit.
Speeds up +3% on PP5022. Effect on coldfire is not measured yet.
Closed by Buschel
2008-05-17 11:11
Reason for closing: Accepted
Additional comments about closing: Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407
2008-05-17 11:11
Reason for closing: Accepted
Additional comments about closing: Warning: Undefined array key "typography" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 371 Warning: Undefined array key "camelcase" in /home/rockbox/flyspray/plugins/dokuwiki/inc/parserutils.php on line 407
committed with r17552
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The above patch shouldn't compile for other targets than PP5022/24 or m5/x5 – will be fixed later.
amiconn measured slow down on coldfire through the resorting within calc_new_V(). A new patch for testing on ICODE_ATTR will be placed here soon.
Final version after some test in IRC by amiconn. ICODE_ATTR is set for calc_new_V() for PP5022/24 only. Other targets either haven't enough IRAM or the decoder performance suffers.