I wasn't able to find an app to test the internal memory throughput (read/write speeds). Have anyone any clue about these speeds?
Thanks
Search market for Benchmark or Quadrant
Related
Here is a thread that seems to be making the rounds throughout the forums...
http://forum.xda-developers.com/showthread.php?t=1010807
Following the guidelines in the thread, here are my results with CM7 using a Kingston 8GB Class 6 card...
Before:
Write - 6.6 MB/s
Read - 15.2 MB/s
After:
Write - 5.8 MB/s
Read - 94.4 MB/s
I would recommend playing with the values to see what works best for your particular SD card... Not quite sure
if it is a placebo type effect, but apps like the Gallery and games that use the SD card are noticeably faster...
Have fun...
I did extensive testing on a patriot class 10 8gb card today.
I had lowest standard deviation on results using 1024 buffer. I also had the highest reads at that buffer with a higher write speed.
I had the highest write speed at 4096, but the read speeds were slower than 1024.
I rebooted several times to make sure that wasn't playing into it, and reran many test. All results were relatively consistent.
~11.6 write
~86 read
@1024
~11.9 write
~79.4 read
@4096
~10.8 write
~71.9 read
@128
The change wasn't huge for me. Most have reported 2048 as the best setting.
Also, I updated my cm7_mod to include this. Working on making it installable w/ the scripting...
http://forum.xda-developers.com/showthread.php?t=1008612
It's only meant to be used with cm7_tablet_tweaks as a base now.
Couldn't such a buffer size setting be usefull for emmc (internal memory) too ?
I'm using dalingrin's OC kernel with the IO issue, and it feels slower than my SD card...
I've commited this tweak already today. I would be interested to find the optimal value for mmcblk0.
Jaostar said:
Couldn't such a buffer size setting be usefull for emmc (internal memory) too ?
I'm using dalingrin's OC kernel with the IO issue, and it feels slower than my SD card...
Click to expand...
Click to collapse
My current kernel should not have any IO issues.
dalingrin said:
I've commited this tweak already today. I would be interested to find the optimal value for mmcblk0.
My current kernel should not have any IO issues.
Click to expand...
Click to collapse
Instructions for tweaking the emmc are in that thread. I wouldn't mind taking the time to test and crunch the numbers but sd tools only wants to test my SD card.
EDIT:
App called J Disk Benchmark 2.0 can test internal memory. Working on testing now.
Uhm... my SD card tests faster...
I hope people don't go over board and incorporate this type of permformance increases in their roms by default based on bench mark tools. there is value in increasing readahead for some access patterns, mainly when doing lots of sequencial reads. the trade off of course is at the expense of memory usage. nook even with its 500mb of memory is still not considered high in memory. setting the readahead to 2mb is quite aggressive and will work well in some work loads like galary when reading lots of files around 2mb in size while in other work loads it may actually have negative affects. I am not saying that this specific tweak is bad because I haven't done any tests myself, but don't always believe the numbers u see from benchmark tools.
I'm only setting it to 1024k. I feel like that is plenty high.
dalingrin said:
I'm only setting it to 1024k. I feel like that is plenty high.
Click to expand...
Click to collapse
Yes 1024 is what I'm running really gave the best all around performance.
I think I found the internal memory and it's set to 128 by default
can't find any real difference between 64 and 4096. That looks like the only other mmc device though, so it must be it.
chisleu said:
App called J Disk Benchmark 2.0 can test internal memory. Working on testing now.
Uhm... my SD card tests faster...
Click to expand...
Click to collapse
Yep, it's the same for me, my Class 6 SD card achieves 6,3/11,6 and the internal memory only 4,86/7,52...
BTW :
J Disk Benchmark 2.0 doesn't use the cache, so this tweak wont affect the results...
Jaostar said:
Yep, it's the same for me, my Class 6 SD card achieves 6,3/11,6 and the internal memory only 4,86/7,52...
BTW :
J Disk Benchmark 2.0 doesn't use the cache, so this tweak wont affect the results...
Click to expand...
Click to collapse
Balls.
I'm going to jack it to 1024 and hope that works then.
OK, I can't get any meaningful numbers anymore. I think yesterday's test was a fluke. I can't get any real changes from 128 to 4096 (or in between) with fast or slow SD cards, big or small, black or dark black.
The write speed on slower cards is lower (5-6mb/s) and the faster cards are higher (10-12MB/s) and read speed for all is 80-90mb/s.
Maybe this is a performance mod not for us?
ok i gotta question about benchmark tests!
i got my mini running on miniCM RC2 and lovin it! but i was just wondering why my benchmark score isnt that high as by other guys!
Antutu benchmark score is between 950 and 1010
and by quadrant standard its between 850 and 980
i have seen alot higher scores on the forum and wanna know what you do differnt than i do!? ( 1150-1250)
and why do these 2 programms always have differnt results!?
and btw sd tools got me at 6MB/s at writing and 14 MB/s reading it should be alot higher as i got my sd cache up to 3048....
some advice would be cool
1)the antutu benchmark adds points for sd card reading and writing speeds and therefore would be higher than quadrant pro benchmarking.Read both the outputs with patience and you will notice this.
2)as for read/write speeds,it would also depend on the class of the sd card you use.
3)I am surprised you seem to get lower quadrant scores.The ideal way to use this ROM(according to me) is start from scratch on a clean sd card without partition.In any case,there is no need for partition.
Best wishes.
yes.. try quadrant pro and you will have higher scores.
wuhoo 1210 today yeaah
X10mini miniCM RC2 overclocked using XDA Premium App
My RAZR's external SD card speeds are extremely poor. I get 4MB/s transfer speeds. I used my SD card on my older phone and the speeds were much better, reached upto 8MB/s on the same set of files. I tried setting the read ahead cache to 2048 but nothing changed.
Does anyone else have slow SD card speeds?
Is there any possible fix for this?
Thanks!
Code:
1) what's yous sdcard class?
2) read ahead cache, is not bigger=better, let's try other values, not just the minimum and maximum, it changes it's optimum for each memory card
3) how did you measure your speeds? on my lg dual i had for example, my class10 sdcard
12w 17r on phone with sdtools
19w 25r using it as a memory reader
A fix for this is to get higher transfer rate sd card, say 10 mb/s. But it would be more expensive.
Sent from my XT910 using XDA App
I bought a class 10 sd card from amazon, which got a writing speed ~15m/s.
Sent from my DROID RAZR using XDA App
I have a class 4 SD card. So my speeds won't be great, I know that. But my card used to manage better speeds before. Is the problem with the RAZR then?
I tried 128, 1024 and 2048. There was no change in the transfer speeds. I read these speeds off teracopy's window. Is there a tool for measuring read-write speeds for the SD card?
Try SD Tools, free in market.
Sent from my DROID RAZR using xda premium
I found an app that claims to measure internal storage speed.
It's Sandisk Memory Zone available on Google Play.
I was pretty surprised at the speed it's reporting. I'd like to know what type of speeds other Xperia Mini Pro owners are getting from this tool.
Regards,
Mike
Hi.
I have a Sony Xperia Z2 with lollipop. The device is not rooted. I was using a sony 32GB Class 10 U1 micro SD card (SR-32UYA/TQ1). It is rated at 40MB/s read speed. The write speed is not mentioned. When I tested it with A1 SD bench I was getting a read speed of around 33MB/s and a write speed of around 15MB/s.
I just upgraded to a Samsung PRO 64GB Class 10 U3 Micro SD card. The Read speed is 90MB/s. The write speed is 80MB/s. When I tested it using A1 SD Bench i was getting read speeds of around 42MB/s and write speeds of around 40MB/s. This is half the advertised speed. Is this what I should expect from this kind of card? And what is the max read/write speed that the Xperia Z2 can handle? Thanks.
Its more of a device configuration thing
My Sandisk Sdcard is rated for 32mb/s but i get 50-60 because of the file system type, i/o scheduler and buffer cache sizes
R/w speeds have a bunch of factors and usually "rated speed" is A maximum of instead of what a user would ever see
Right! You will get those values when you put card into a card reader with USB 3.0 support. Beside the setting of IO scheduler and read ahead cache can effects 10-20% benchmark scores.
Hi, so what can u advise and tips when buying sd card. Thanks.
Envious_Data said:
Its more of a device configuration thing
My Sandisk Sdcard is rated for 32mb/s but i get 50-60 because of the file system type, i/o scheduler and buffer cache sizes
R/w speeds have a bunch of factors and usually "rated speed" is A maximum of instead of what a user would ever see
Click to expand...
Click to collapse
Would you please post your settings?
Hello!
As today, in 2018, a A1 rated micro SD Card is worth to use with the Xperia Z2?
Thank you!