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I notice SD cards are rated 60x 133x or greater. Will I notice a difference on my Blue Angel?
Is the BA USB interface version 2.0?
I'm torn between getting the Sandisk 1GB (with built in USB) or the new 2GB, a third option is the new Sandisk Extremee III (1GB) with superfast 20Mbps xfer.
I am curious t this as well.
I recently purchased a no-frills 2GB SD card from newegg that claimed to be 150x. When benchmark testing with PocketMechanic, I saw that my storage card only did 1.8x read / 0.8x write. However, the onboard storage benchmarked to be 2.9x read / 4.2x write. [Note: Both onboard Storage and SD Storage card were formatted before testing.]
I haven't done the research to find out if BA is USB 1.1 or 2.0, but I've noticed that a USB SD card reader is significantly faster than transfering files through the BA. It took 4 minutes to transfer 73MB for 193 files and 39 folders via windows explorer, or roughly 300K/s, where as I was able to transfer 1.5GB in 401 files and 59 folders in roughly the same time via USB SD card reader.
If the speed of the no-name card is in question, I confirmed the speed to be at least 5.5MB/s, by copying back 1.5GB in 401 files / 59 folders in 270 seconds via USB to SD card reader. Had this been one single contiguous file, the transfer rates would have been alot faster... I could have confirmed by copying a like-sized file to the media, but you'll have to take my word on this, as I've already spent quite some time satisfying my own curiousity to answer your question
See below for Pocket Mechanic details:
Details:
Card tested "Storage Card"
Min. read time: 0.25ms
Max read time: 18.00 ms
Avg. read time 1.87ms
Sector/block: variable 4-64
Min write time: 0.50ms
Max write time: 16.00 ms
Avg. write time: 4.02ms
Read/write ratio: 0.46
Sector size: 512 bytes
Start Sector: 0
End Sector: 3910656
Total Sectors read: 2504
Total data read: 1.00MB
Total read time: 4673 ms
Total sectors written: 2504
Total data written: 1.00MB
Total write time: 10057ms
Details:
Card tested "Storage"
Min. read time: 0.25ms
Max read time: 16.00 ms
Avg. read time 1.14ms
Sector/block: variable 4-64
Min write time: 0.50ms
Max write time: 9.25 ms
Avg. write time: 0.80ms
Read/write ratio: 1.43
Sector size: 512 bytes
Start Sector: 0
End Sector: 125488
Total Sectors read: 2504
Total data read: 1.00MB
Total read time: 2855 ms
Total sectors written: 2504
Total data written: 1.00MB
Total write time: 2001ms
Thanks, pity you ont have any other cards to compare too.
FYI, my curiousity got the best of me again, so I tested my no frill card's speed more thoroughly. According to SiSoft Sandra, my card is at least 55x to 65x at 64MB chunks, via USB reader. See below for full details.
I also performed my own test, where I copied a single contiguous 1.9GB file (1944973970 bytes) to and from my SD card via USB reader.
Read: 262.50 seconds, 7.4MB/sec, 40x (@ 176K/x) or 50x (@ 150K/x)
Write: 204.84 seconds, 9.4MB/sec, 53x (@ 176K/x) or 63x (@ 150K/x)
This is no where close to the 150X claimed speed, but this may be a limitation of my 2.33Ghz Centrino laptop's 5400RPM hdd? Really can't tell since I don't have another SD card to test with, nor do I have current plans to test on other hardware...
Hope this helps!
---------
SiSoftware Sandra
Benchmark Results
Combined Index : 1296 operation(s)/min
Endurance Factor : 9.2
512B Files Test : 1382 operation(s)/min
32kB Files Test : 1617 operation(s)/min
256kB Files Test : 1012 operation(s)/min
2MB Files Test : 124 operation(s)/min
64MB Files Test : 8 operation(s)/min
Results Interpretation : Higher index values are better.
Performance Test Status
Run ID : ALEX2 on Saturday, August 27, 2005 at 11:51:07 PM
SMP Test : No
Total Test Threads : 1
SMT Test : No
Dynamic MP/MT Load Balance : No
Processor Affinity : No
512B Files Test
Read Performance : 13831 operation(s)/min (115 kB/sec, 0x)
Write Performance : 494 operation(s)/min (4 kB/sec, 0x)
Delete Performance : 1358 operation(s)/min
File Fragments : 1.0
Combined Index : 1382 operation(s)/min
32kB Files Test
Read Performance : 7001 operation(s)/min (3734 kB/sec, 21x)
Write Performance : 653 operation(s)/min (348 kB/sec, 1x)
Delete Performance : 1366 operation(s)/min
File Fragments : 1.0
Combined Index : 1617 operation(s)/min
256kB Files Test
Read Performance : 1865 operation(s)/min (7957 kB/sec, 45x)
Write Performance : 507 operation(s)/min (2163 kB/sec, 12x)
Delete Performance : 1340 operation(s)/min
File Fragments : 1.0
Combined Index : 1012 operation(s)/min
2MB Files Test
Read Performance : 267 operation(s)/min (9114 kB/sec, 51x)
Write Performance : 52 operation(s)/min (1775 kB/sec, 10x)
Delete Performance : 937 operation(s)/min
File Fragments : 1.0
Combined Index : 124 operation(s)/min
64MB Files Test
Read Performance : 8 operation(s)/min (8738 kB/sec, 49x)
Write Performance : 6 operation(s)/min (6554 kB/sec, 37x)
Delete Performance : 555 operation(s)/min
File Fragments : 1.0
Combined Index : 8 operation(s)/min
Endurance Test Status
Operating System Disk Cache Used : No
Use Overlapped I/O : No
Test File Size : 32MB
Block Size : 512 byte(s)
File Fragments : 1
Endurance Benchmark Breakdown
Repeated Sector ReWrite : 333 kB/s
Sequential Sector Write : 332 kB/s
Random Sector Write : 25 kB/s
Drive
Total Size : 1.9GB
Free Space : 1.9GB, 100%
Cluster Size : 4kB
Performance Tips
Notice 5901 : 1x=176kB/s; As some device makers use 1x=150kB/s exercise caution when comparing measured vs. published ratings.
Notice 5008 : To change benchmarks, click Options.
Notice 5004 : Synthetic benchmark. May not tally with 'real-life' performance.
Notice 5006 : Only compare the results with ones obtained using the same version!
Notice 5207 : Consider using the File System Benchmark for non-Flash devices.
Notice 5900 : Endurance factor can only be used on the same type of device (SLC or MLC).
Tip 11 : Use the 'Switch Chart Type' button to switch between Detailed and Combined charts.
Tip 2 : Double-click tip or press Enter while a tip is selected for more information about the tip.
Hi guys,
I propose a topic to compare different speed of microSD Card :
Software test : sktools benchmark
Verbatim 2 Go :
write : 380,63 kb/sec
read : 13128,59 kb/sec
Sandisk sdhc 8 Go ultra class 6 :
write : 734,14 kb/sec
read : 13356,52 kb/sec
I disappointed of performance to sandisk class 6, the read speed is same of a Verbatim. I tested this Sandisk with a windows PC software (flash memory Toolkit), write : 13358 KB/s and read : 17356 KB/s. There is a big difference.
The HTC cruise have a hardware limit ???
I would get the speed of Sandisk sdhc 8 Go class 4, thank you for your results....
new 02/04/2008 : the activeSync is faster with Explorer/StorageCard for copy/read files
http://www.comshop.si/Article.asp?articleid=57961
I have this card.
Storage card write 551.77 KB/sec.
Storage card read 1906.89 KB/sec.
I allways have just Transcend cards. They are the best and you have lifetime warranty.
"Storage card read 1906.89 KB/sec."
Your card is slow, it's strange...are you sure ?
Speedup your SD-Card reading Speed as follow steps:
1-Download and install "SD Tools" app that attached below and run to inform your sdcard write and read speed before applying speedup patch.
2-Download and install "Script Manager".
3-download "sdcardspeed.zip" file and Move "sdcardspeed.sh" file into your SD-Card.
4-Run "Script Manager" program and select "sdcardspeed.sh".
in opened page: fill the "Run as Root" and "Run at Boot" check boxes and Save!
5- Reboot the phone and after reboot "Allow" superuser!
6-Run again the "SD Tools" and compare your SD-Card speed after applying the patch.
Progress in your SD-Card speed is depend on your SD-Card Class.
Why not asking for SU after ReBoot!? (Here's explaing of the problem!): Thanks to GlossGhost
Lol, it really does something, Read: 4.5 MB/s
thanks good staff for my x10 i will test it later
the clock on the before shot shows that it was taken after the other
There's actually a new app called "SD increase " that will take care of the script for u
Sent from my X10i using XDA App
ermm... is there really a need to open a new thread when someone has already posted in our X10 General section where it should belong?
increase sdcard read/write speeds
anyway, good effort though...
GlossGhost said:
Lol, it really does something, Read: 4.5 MB/s
Click to expand...
Click to collapse
mine - 9.6 mb/s before
now is 10 mb/s
how to Allow SU after reboot?
microsd SU16G
cache set to 3072
before write 5.8 read 17.2
after write 6.5 read 26.1
Before 6.7
17.7
After 5.6
19.2
MicroSD SU08G
before
2.6
14.7
after
4.6
25.1
thanks
nonentity said:
ermm... is there really a need to open a new thread when someone has already posted in our X10 General section where it should belong?
increase sdcard read/write speeds
anyway, good effort though...
Click to expand...
Click to collapse
You can see downloads number of the thread
Why would my write speed go up but not my read speed? In fact my read is slower than the write!
Sent from my X10a using XDA App
great find!!
before write 1,2 read 12
after write 1,2 read 13,8
nice!!
my results WITHOUT the script:
1 - Write: 3.2 MB / s Read: 12.1 MB / s
2 - Write: 5.4 MB / s Read: 13.3 MB / s
3 - Write: 9.1 MB / s Read: 14.5 MB / s
4 - Write: 10.1 MB / s Read: 14.9 MB / s
5 - Write: 11.0 MB / s Read: 14.6 MB / s
6 - Write: 10.4 MB / s Read: 14.6 MB / s
Now with the script:
Firstly, the script did not do anything!
Message from GScript "sdcardspeed.sh: / system / bin / echo: not found"
this happens because I have echo in the xbin folder
After changing the file "read_ahead_kb" manually to 3072,
1 - Write: 9.9 MB / s Read: 32.6 MB / s
2 - Write: 10.3 MB / s Read: 29.8 MB / s
3 - Write: 10.3 MB / s Read: 30.3 MB / s
Conclusion,
first we need to make 3 or 4 tests without the script to get the real speeds, and secondly, only the reading speed increased (is already good enough).
Question: How does "read_ahead" could increase the writing speed?
Why not asking for SU after ReBoot!? (Here's explaing of the problem!)
memazy said:
mine - 9.6 mb/s before
now is 10 mb/s
how to Allow SU after reboot?
Click to expand...
Click to collapse
Okay, so I think everybody know's that when you turn on the phone, it's "Preparing SD Card" so the Script Manager is starting earlier than the sd card (i know the card is not starting but preparing). So the manager starts, and searches for the script, but there is NO sd card (because the sd card is preparing...) and what? Loading the script FAILS! That's why the manager don't ask for SuperUser permissions. That's why You have to move the "sdcardspeed.sh" to the INTERNAL MEMORY (I suggest moving it to the root folder of the INTERNAL MEMORY where are all the folders: system, sdcard.. etc) then you do all the instructions below.
Here's MY instructions:
1-Download and install "SD Tools" app that attached below and run to inform your sdcard write and read speed before applying speedup patch.
(attached @ first post!)
2-Download and install "Script Manager".
(attached @ first post!)
3-Download "sdcardspeed.zip" file and Move "sdcardspeed.sh" file into your SD-Card.
(attached @ first post!)
4-Use something like Root Explorer and move the "sdcardspeed.sh" file to the root folder of the INTERNAL MEMORY.
5-Run "Script Manager" search for the "sdcardspeed.sh" in the INTERNAL MEMORY not at the EXTERNAL MEMORY!" and select it.
6-In opened page: fill the "Run as Root" and "Run at Boot" check boxes and Save!
7- Reboot the phone and after reboot "Allow" superuser!
8-Run again the "SD Tools" and compare your SD-Card speed after applying the patch.
____________________________________________
That's from me
Nice one
Before:
5.9 and 15.5
After
9.6 and 46.8
Read speed increased by 3 times!!! Good one mate..
sony ericsson E10i (x10 mini)
To what cache/buffer size does this script increase the stock value?
My sd has the fastest speeds with 2048kb...
Does this work for 2.1?
I've changed the cache size manually with Root Explorer and I've seen a huge jump in my read and write speeds.
The only issue is that the change I made goes back to default when I reboot my phone.
I've seen other MODs but it required for me to have 2.2, which is why I'm asking.
vitas0y said:
Does this work for 2.1?
I've changed the cache size manually with Root Explorer and I've seen a huge jump in my read and write speeds.
The only issue is that the change I made goes back to default when I reboot my phone.
I've seen other MODs but it required for me to have 2.2, which is why I'm asking.
Click to expand...
Click to collapse
there's a guid in this thread
http://forum.xda-developers.com/showthread.php?t=1013554
before:
write : 4.0 mb/s
read : 11.9 mb/s
after:
write : 1.3 mb/s
read : 99.4 mb/s
something must be wrong... write speed 4x less and read speed 9x more
This is for people who want a decent sized SD card with good performance at a cheap price so, i will buy the cheapest most decent 16GB SD card i can find and do some tests against the stock memory card and upload a few screen-shots.
Stock Card - 2GB Class 2 - Price? £5+
Application Used: SD Tools -Android Market - FREE
Test 1
Write Speed: 4.3Mb/s
Read Speed: 21.8Mb/s
Test 2
Write Speed: 4.3Mb/s
Read Speed: 19.3Mb/s
Test1
Test2
16GB Class 6 - Price - £10.98
Application Used: SD Tools - Android Market - FREE
Test 1
Write Speed: 10.9Mb/s
Read Speed: 24.8Mb/s
Test 2
Write Speed: 11.3Mb/s
Read Speed: 21.9Mb/s
Test1
Test 2
As you can see the class 6 16GB done a little better on the Read test but very good on the Write test a good but and a must have.
Class 10
dude, you can get a class 10 card now!
"Search after wiki Secure_Digital"
And the class 10 card is very stable and quick(fast).
Greeze
are they both NAND Flash storage device? the only difference is that the inner one is fixed to the device and difficult to remove from device, while the sd cards are removable, any other differencees?
dalvikna said:
are they both NAND Flash storage device? the only difference is that the inner one is fixed to the device and difficult to remove from device, while the sd cards are removable, any other differencees?
Click to expand...
Click to collapse
yes both are nand device .......now a days flash nand technology is used in solid drives. NAND has so many advantages over NOR technology like higher densities, larger capacities, and lower cost. It has faster erases, sequential writes, and sequential reads.
inner storage has more pins than sd cards . sd card have 8 pins where as internal storage have 16 or may be 32 pins which results into high read write speed . both sequential as well as random read write speed of inner storage are better than sd card .
if you want to know more about random read write speed go to this thread : http://forum.xda-developers.com/showthread.php?t=2742903
i randomly performed a disk marking and got following results .
test performed on 50 mb space
1. inner storage (device micromax canvs hd )'
-----------------------------------------------------------------------
CrystalDiskMark 3.0.3 Shizuku Edition x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 34.813 MB/s
Sequential Write : 6.757 MB/s
Random Read 512KB : 34.773 MB/s
Random Write 512KB : 2.992 MB/s
Random Read 4KB (QD=1) : 13.044 MB/s [ 3184.6 IOPS]
Random Write 4KB (QD=1) : 1.079 MB/s [ 263.3 IOPS]
Random Read 4KB (QD=32) : 15.335 MB/s [ 3744.0 IOPS]
Random Write 4KB (QD=32) : 1.143 MB/s [ 279.1 IOPS]
Test : 50 MB [H: 37.1% (671.3/1809.3 MB)] (x1)
Date : 2014/05/15 23:21:18
OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x64)
2. sony sd card (32 gb class 4)
rystalDiskMark 3.0.3 Shizuku Edition x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 8.725 MB/s
Sequential Write : 3.028 MB/s
Random Read 512KB : 8.715 MB/s
Random Write 512KB : 0.659 MB/s
Random Read 4KB (QD=1) : 2.548 MB/s [ 622.2 IOPS]
Random Write 4KB (QD=1) : 0.247 MB/s [ 60.4 IOPS]
Random Read 4KB (QD=32) : 2.905 MB/s [ 709.2 IOPS]
Random Write 4KB (QD=32) : 0.384 MB/s [ 93.7 IOPS]
Test : 50 MB [E: 16.7% (4.8/28.9 GB)] (x1)
Date : 2014/05/15 23:26:53
OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x64)
3. pen drive 16 gb hp
CrystalDiskMark 3.0.3 Shizuku Edition x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
-----------------------------------------------------------------------
* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]
Sequential Read : 19.958 MB/s
Sequential Write : 5.597 MB/s
Random Read 512KB : 22.317 MB/s
Random Write 512KB : 0.997 MB/s
Random Read 4KB (QD=1) : 4.655 MB/s [ 1136.4 IOPS]
Random Write 4KB (QD=1) : 0.012 MB/s [ 2.9 IOPS]
Random Read 4KB (QD=32) : 5.362 MB/s [ 1309.2 IOPS]
Random Write 4KB (QD=32) : 0.013 MB/s [ 3.1 IOPS]
Test : 50 MB [D: 0.1% (0.0/15.0 GB)] (x1)
Date : 2014/05/15 23:42:49
OS : Windows 7 Ultimate SP1 [6.1 Build 7601] (x64)
now you can easily compare the basic difference . i found that random write speed is maximum in case of inner storage which is required for better performance of operating system (refer the link of thread ).
How to increase internal sdcard?
I bought a chinese tablet, Ainol Novo8 mini, which has a Micron 64GB Nand Flash MT29F64G08CBAAAWP.
The tablet uses only 8GB, so is it possible to increase the internal storage? How can I do it?
Thanks in advance.