Usb 2.0 has a 480Mbits/s standard, wich is 60Mbytes/s.
In practice devices tend to cap around 45Mb/s in this port.
Fom my experience with wiiU discs, the laser doens't move like its fetching hundreds and hundreds of files... I would assume data in the discs is aranged to be loaded.
Current SD speeds can be compared to the disc drive in sequencial reading, but cant be compared in random readings due to the nature of the data allocation (thousands of extracted files outside the system).
I thinks theres going to allways be an hadicap in speed unless using an SSD drive through USB wich compensates for the IOPS needed.
Last edited by frankGT,
Files on the optical disk are always contiguous. The only optimisation could be made in time of original disc image production is to place several files in a sequence they actually read. Random access your n OSD are extremely slow, even slower than in HDD. It can't handle random read with high speed.
Assuming were writing on SD with clran FAT, we have the same contiguous files, with the only difference that we have to read and parse FAT anyway, instead of the OSD image TOC. Having big impact on performance with increasing cluster size, and small but noticeable impact with increasing SD card speed class points that only thing we can significantly improve is FAT access overhead.
Well, except if you made a mistake, I wouldn't buy that, since 512GB micro SD cards doesn't exist at the moment (afaik, the max is 200GB), and even if it was a thing, it would be SDXC by default. And if it's 512MB and not 512GB, not only you won't be able to fit any Wii U game on it, but it would be a classic SD format. So it's probably a scam.
I know, but I don't think he made an error on that part, since he also mentioned an adapter.
great thanks for this info. These 512gb cards are also showing up on amazon. This is nuts. BTW I am referring to microsd. Didn't even know there was a regular 512gb SD card. Would a regular SD affect the loading speed?
Last edited by jerzmob,
@memomo, since I saw you've asked on another thread about loading time of "The wonderful 101" with loadiine gx2, I did a little test today with my transcend UHS 3 64gb SD card formatted at 64k cluster. The wonderful 101 (with the japan language deleted from the content folder) loaded in 17min... so it's still terrible loading time unfortunately... I haven't experimented with messing around with the content files.. maybe there is a trick like Fast Racing Neo which could make it load faster... FYI Super Mario 3d loaded in 57sec.. if anyone has a trick which could make this game load faster, please share!
yes I saw that.. I was quite surprised by those numbers. Certain card might perform better with 64k cluster formatting, or he/she might have exaggerated the numbers a bit... only way to find out would be to for another user with the exact same card to do a test and report back
in https://gbatemp.net/threads/loadiine-gx2.413823/page-47#post-6089278
@CableLeecher reported that:
On a SanDisk Extreme UHS-1 it boots Super Mario 3D World in about 25 seconds instead of 1,5 minutes with 32k clusters. tested on 2 identical cards
and
i have tested my sd card (Komputerbay 128GB SDXC UHS-I 600X) with standard 32k clusters and i have 52sec from pressing to the titlescreen with sound (when he says super mario...)
dont tried the 64k method because somewhere i read a post on one game was not working maybe because of the big clusters, but thats not confirmed
@CableLeecher reported that:
On a SanDisk Extreme UHS-1 it boots Super Mario 3D World in about 25 seconds instead of 1,5 minutes with 32k clusters. tested on 2 identical cards
and
i have tested my sd card (Komputerbay 128GB SDXC UHS-I 600X) with standard 32k clusters and i have 52sec from pressing to the titlescreen with sound (when he says super mario...)
dont tried the 64k method because somewhere i read a post on one game was not working maybe because of the big clusters, but thats not confirmed
I had a typo and mixed up the cluster numbers. It's 35 secs on the SanDisk Extreme with 64k Clusters. 128k Clusters won't give you anymore improvement. Indeed I noticed that the SanDisk Extreme cards perform much better than other vendors cards with the same specs when formatted with 64k clusters instead of 32k or even worse 4k when formatted with standard options. by the way I also noticed a huge speed improvement if the card is lowlevel formatted before I put stuff on it. I have no clue why it behaves like this. on my MacPro it doesn't matter if lowlevel or standard, neither on the Windows 10 machine.
Quick greets from work.
Talk toyou guys later tonight when I'm back from work.
Quick greets from work.
Talk toyou guys later tonight when I'm back from work.
when you make low level format the structure of the file system will be full new rebuild -> there is no fragmentation
when you use as an example an usb stick for a while and check speed before using and after some weeks -> you will see a loss in speed
if your low level format it the speed will be full as in the beginning
in ssd they use the trim command to keep the speed over the time but its not used for usb-sticks or sd cards as i know
for a hard disk would help defrag but because of the wear leveling the sd-cards/ssd/usbsticks use i think a low-level format would help more than a defrag on sdxc
when you use as an example an usb stick for a while and check speed before using and after some weeks -> you will see a loss in speed
if your low level format it the speed will be full as in the beginning
in ssd they use the trim command to keep the speed over the time but its not used for usb-sticks or sd cards as i know
for a hard disk would help defrag but because of the wear leveling the sd-cards/ssd/usbsticks use i think a low-level format would help more than a defrag on sdxc
That's really interesting... yes I've noticed that low level formatting make a big difference. Also adding all the games you want at once (instead of one by one over time) seems to create less fragmentation which improves performance. good to know about that scandisk extreme card, i mean it's pretty much twice as fast as my card which has the same specs...! do you mind posting a link to the exact card you are talking about? there are quite a few different extreme models out there. thanks!
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