Posts: 20
Joined: Mar 2010
Reputation:
1
Not trying to steal xbs08's thunder but I thought I would try running MilhouseVH's latest build with a f2fs storage partition on a usb drive - and, well, everything appears to be working!
As to running faster, it appears to be when going through my movie collection (fanart view) but that might just be subjective.
Are there any 4kb write speed tests I can perform to compare against an ext4 storage partition?
Posts: 244
Joined: Jun 2013
Reputation:
0
Koloss
Senior Member
Posts: 244
Very good news! I hope in future it is in our build included!
Posts: 1,787
Joined: May 2008
Reputation:
8
xbs08
Posting Freak
Posts: 1,787
Did a quick run with F2FS and the performance is about the same as ext4.
Maybe there will be improvements when scanning the library.
Agree, no hurries.
- Intel NUC Kit DN2820FYKH ~ Crucial DDR3L SO-DIMM 4GB ~ SanDisk ReadyCache 32GB SSD ~ Microsoft MCE model 1039 RC6 remote
Posts: 527
Joined: Jun 2013
Reputation:
3
I certainly yield to your far superior knowledge. I note, however, that the benchmarks showed no improvement in read performance for F2FS, whereas read performance was materially improved in the instances where switching from sdcard to USB made a difference.
What do you say about the processor/python/python routine bottleneck?
Posts: 1,787
Joined: May 2008
Reputation:
8
xbs08
Posting Freak
Posts: 1,787
Even if the read speeds are more or less the same I prefer to have faster write times over slower ones.
- Intel NUC Kit DN2820FYKH ~ Crucial DDR3L SO-DIMM 4GB ~ SanDisk ReadyCache 32GB SSD ~ Microsoft MCE model 1039 RC6 remote
Posts: 20
Joined: Mar 2010
Reputation:
1
I'm not sure if this is a fair or even useful comparison and I will probably get shot down by some of the more knowledgeable people on this forum but I tried copying my thumbnails folder to another location on the storage usb using:
"time cp -r /storage/.xbmc/userdata/Thumbnails/* /storage/downloads/Thumbnails"
With the ext4 formatted storage the time to copy 243,517,211 bytes (6,977 files) was 9m:54.36s => 0.4066 MB/s
I then ran "time rm -rf /storage/downloads/Thumbnails/" and this took 4.10s
With the f2fs formatted storage the time to copy 243,721,615 bytes (6,989 files) was 2m:41.87s => 1.4359 MB/s
Delete took 2.81s
I ran the test 3 times on each and time taken was within 5%.
This was using the same usb stick - a 4GB Sandisk Cruzer.
Assuming this has any meaning that represents a 3.5x performance gain with f2fs.
Posts: 1,787
Joined: May 2008
Reputation:
8
xbs08
Posting Freak
Posts: 1,787
2013-12-19, 18:22
(This post was last modified: 2013-12-19, 18:30 by xbs08.)
Thank you Reddog999 for taking the time to do these test and for posting them here.
I assume copying from other device will improve those times.
- Intel NUC Kit DN2820FYKH ~ Crucial DDR3L SO-DIMM 4GB ~ SanDisk ReadyCache 32GB SSD ~ Microsoft MCE model 1039 RC6 remote
Posts: 1,787
Joined: May 2008
Reputation:
8
xbs08
Posting Freak
Posts: 1,787
My Thumbnail folder is 151 MB...
OpenELEC:~ # time cp -r /storage/.xbmc/userdata/Thumbnails/* /storage/downloads/Thumbnails
real 0m 31.39s
user 0m 0.19s
sys 0m 3.33s
OpenELEC:~ # time rm -rf /storage/downloads/Thumbnails/
real 0m 0.68s
user 0m 0.02s
sys 0m 0.30s
Can this be right??
- Intel NUC Kit DN2820FYKH ~ Crucial DDR3L SO-DIMM 4GB ~ SanDisk ReadyCache 32GB SSD ~ Microsoft MCE model 1039 RC6 remote