I am not subscribed to linaro-dev, so please Cc me in case you drop flashbench-results
mailinglist from receivers.
Hi Arnd, hi everyone!
For now quick and short.
A simple script to automate common steps on reporting flash medium test
results. It goes as far as read tests for erase block size and then suggests
some open au tests together with a warning that these write to the device.
I checked other flashbench-results posts as to what info would be
interesting.
Find it at:
git://gitorious.org/flashbench/flashbench.git
Example output is at:
[Flashbench] Samsung Plus MB-SPAGFFP Class 10 SDHC 16GB
Sat Dec 1 16:02:18 UTC 2012
http://lists.linaro.org/pipermail/flashbench-results/2012-December/000346.h…
Sorry that I occupied flashbench upstream name for project. I can look
into renaming it to "flashbench-martin" or something like that.
The script is in branch "flashreport".
In branch "defaultblocksize" you find a currently untested patch for
changing default block size to 1024.
I can try to send patches as mails via git, but I´d have to look it up first,
since I do this quite rarely.
Up to then please use the repo urls :)
Nice weekend,
--
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7
Hi,
I have following cheaply bought SD-Card from Ebay:
Samsung 32 GB
MB-SSBGA
MBSSBGVEOBGA-SH
D 13CG5000 1 3 6
$:/sys/block/mmcblk0/device# head
/sys/block/mmcblk0/device/{c*,scr,*rev,*id,serial,*size}
==> /sys/block/mmcblk0/device/cid <==
1b534d3030303030107677b02300c100
==> /sys/block/mmcblk0/device/csd <==
400e00325b590000e9e57f800a404000
==> /sys/block/mmcblk0/device/scr <==
02b5800200000000
==> /sys/block/mmcblk0/device/fwrev <==
0x0
==> /sys/block/mmcblk0/device/hwrev <==
0x1
==> /sys/block/mmcblk0/device/cid <==
1b534d3030303030107677b02300c100
==> /sys/block/mmcblk0/device/manfid <==
0x00001b
==> /sys/block/mmcblk0/device/oemid <==
0x534d
==> /sys/block/mmcblk0/device/serial <==
0x7677b023
==> /sys/block/mmcblk0/device/erase_size <==
512
==> /sys/block/mmcblk0/device/preferred_erase_size <==
4194304
and here is the first Benchmark which is for me hard to interprete:
root@ThinkPad-T400:~/flashbench/flashbench# ./flashbench -a /dev/mmcblk0
--blocksize 1024 --count=100
align 8589934592 pre 208µs on 221µs post 206µs diff 14.3µs
align 4294967296 pre 207µs on 223µs post 208µs diff 15.1µs
align 2147483648 pre 205µs on 219µs post 207µs diff 13µs
align 1073741824 pre 257µs on 305µs post 241µs diff 56.7µs
align 536870912 pre 225µs on 261µs post 225µs diff 36µs
align 268435456 pre 294µs on 387µs post 281µs diff 100µs
align 134217728 pre 239µs on 285µs post 234µs diff 48.1µs
align 67108864 pre 222µs on 267µs post 220µs diff 46.6µs
align 33554432 pre 211µs on 257µs post 218µs diff 41.8µs
align 16777216 pre 231µs on 296µs post 237µs diff 61.8µs
align 8388608 pre 224µs on 260µs post 225µs diff 36.2µs
align 4194304 pre 222µs on 259µs post 227µs diff 34.4µs
align 2097152 pre 230µs on 260µs post 213µs diff 38.6µs
align 1048576 pre 218µs on 254µs post 223µs diff 33.8µs
align 524288 pre 234µs on 266µs post 216µs diff 40.7µs
align 262144 pre 224µs on 258µs post 224µs diff 33.3µs
align 131072 pre 228µs on 257µs post 210µs diff 37.8µs
align 65536 pre 212µs on 248µs post 216µs diff 33.8µs
align 32768 pre 223µs on 253µs post 205µs diff 38.3µs
align 16384 pre 239µs on 258µs post 234µs diff 21.3µs
align 8192 pre 233µs on 233µs post 233µs diff 424ns
align 4096 pre 234µs on 240µs post 234µs diff 5.88µs
align 2048 pre 233µs on 234µs post 234µs diff 584ns
in other outputs there are more or less only two steps (at eraseblock size
and blocksize) and they are differently ordered. The Debug FS says erase
block should be 4 MB but from this Benchmark I would suggest something like
2GB?!? Or is it 128MB ? Blocksize is 16KB i would suggest but I could be
wrong ... could you help me ? I will give the other results if the block
sizes are more clear to me...
Hi,
I'm having troubles at the first step: determining the erase block
size. The strange results are below.
The original FAT layout was not saved when the drive was purchased.
# lsusb
Bus 004 Device 002: ID 125f:c82a A-DATA Technology Co., Ltd.
# fdisk -l /dev/disk/by-id/usb-ADATA_USB_Flash_Drive_1061309422330015-0\:0
Disk /dev/disk/by-id/usb-ADATA_USB_Flash_Drive_1061309422330015-0:0:
7873 MB, 7873757184 bytes
180 heads, 14 sectors/track, 6102 cylinders, total 15378432 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xf65985aa
Device Boot
Start End Blocks Id System
/dev/disk/by-id/usb-ADATA_USB_Flash_Drive_1061309422330015-0:0-part1
2048 15378431 7688192 83 Linux
# for i in 1 2 4 8 16; do echo -e "\n\nbs=$[$i*1024]"; flashbench -a
/dev/disk/by-id/usb-ADATA_USB_Flash_Drive_1061309422330015-0\:0
--blocksize=$[$i*1024]; done
bs=1024
align 2147483648 pre 829µs on 815µs post 836µs
diff -17473n
align 1073741824 pre 846µs on 796µs post 853µs
diff -53379n
align 536870912 pre 744µs on 781µs post 834µs diff -8238ns
align 268435456 pre 827µs on 798µs post 831µs diff -31049n
align 134217728 pre 758µs on 763µs post 763µs diff 2.71µs
align 67108864 pre 789µs on 779µs post 815µs diff -22737n
align 33554432 pre 773µs on 747µs post 779µs diff -29372n
align 16777216 pre 695µs on 773µs post 816µs diff 16.8µs
align 8388608 pre 688µs on 728µs post 691µs diff 39µs
align 4194304 pre 733µs on 779µs post 815µs diff 4.47µs
align 2097152 pre 742µs on 761µs post 759µs diff 10.8µs
align 1048576 pre 811µs on 793µs post 817µs diff -21380n
align 524288 pre 799µs on 794µs post 816µs diff -13187n
align 262144 pre 756µs on 795µs post 800µs diff 17µs
align 131072 pre 737µs on 685µs post 744µs diff -55710n
align 65536 pre 741µs on 747µs post 747µs diff 3.18µs
align 32768 pre 798µs on 780µs post 799µs diff -18178n
align 16384 pre 732µs on 779µs post 796µs diff 15.1µs
align 8192 pre 740µs on 776µs post 799µs diff 7.01µs
align 4096 pre 952µs on 758µs post 799µs diff -117830
align 2048 pre 738µs on 774µs post 798µs diff 6.04µs
bs=2048
align 2147483648 pre 853µs on 848µs post 869µs
diff -12804n
align 1073741824 pre 861µs on 869µs post 869µs
diff 3.88µs
align 536870912 pre 833µs on 834µs post 835µs diff -193ns
align 268435456 pre 877µs on 907µs post 900µs diff 18.4µs
align 134217728 pre 842µs on 851µs post 870µs diff -5455ns
align 67108864 pre 828µs on 799µs post 833µs diff -31688n
align 33554432 pre 767µs on 827µs post 832µs diff 26.9µs
align 16777216 pre 758µs on 776µs post 762µs diff 16.2µs
align 8388608 pre 713µs on 714µs post 712µs diff 868ns
align 4194304 pre 857µs on 887µs post 866µs diff 25.9µs
align 2097152 pre 837µs on 867µs post 872µs diff 12.7µs
align 1048576 pre 847µs on 834µs post 847µs diff -13895n
align 524288 pre 865µs on 882µs post 866µs diff 16.4µs
align 262144 pre 864µs on 849µs post 868µs diff -17470n
align 131072 pre 795µs on 799µs post 799µs diff 1.98µs
align 65536 pre 868µs on 868µs post 867µs diff 205ns
align 32768 pre 866µs on 867µs post 868µs diff -623ns
align 16384 pre 859µs on 853µs post 871µs diff -11754n
align 8192 pre 859µs on 869µs post 849µs diff 15µs
align 4096 pre 978µs on 980µs post 829µs diff 76.4µs
bs=4096
align 2147483648 pre 905µs on 908µs post 1.05ms
diff -70516n
align 1073741824 pre 997µs on 979µs post 1.11ms
diff -72729n
align 536870912 pre 961µs on 978µs post 1.1ms diff -51399n
align 268435456 pre 965µs on 973µs post 1.07ms diff -42441n
align 134217728 pre 890µs on 891µs post 1.03ms diff -70698n
align 67108864 pre 855µs on 838µs post 1.02ms diff -97971n
align 33554432 pre 853µs on 870µs post 1.05ms diff -80043n
align 16777216 pre 832µs on 832µs post 1.03ms diff -98061n
align 8388608 pre 842µs on 843µs post 1.03ms diff -92877n
align 4194304 pre 933µs on 960µs post 1.08ms diff -46878n
align 2097152 pre 924µs on 926µs post 1.03ms diff -51066n
align 1048576 pre 948µs on 925µs post 1.07ms diff -82986n
align 524288 pre 970µs on 981µs post 1.1ms diff -55840n
align 262144 pre 985µs on 954µs post 1.12ms diff -97010n
align 131072 pre 933µs on 944µs post 1.08ms diff -60718n
align 65536 pre 970µs on 956µs post 1.03ms diff -46152n
align 32768 pre 963µs on 943µs post 1.11ms diff -91246n
align 16384 pre 914µs on 924µs post 1.07ms diff -67228n
align 8192 pre 923µs on 924µs post 1.09ms diff -80328n
bs=8192
align 2147483648 pre 1.66ms on 1.62ms post 1.64ms
diff -29621n
align 1073741824 pre 1.65ms on 1.64ms post 1.68ms
diff -22022n
align 536870912 pre 1.62ms on 1.62ms post 1.62ms diff 662ns
align 268435456 pre 1.62ms on 1.6ms post 1.62ms diff -17675n
align 134217728 pre 1.64ms on 1.61ms post 1.64ms diff -31935n
align 67108864 pre 1.68ms on 1.67ms post 1.67ms diff -3326ns
align 33554432 pre 1.73ms on 1.74ms post 1.74ms diff 9.42µs
align 16777216 pre 1.66ms on 1.64ms post 1.64ms diff -7797ns
align 8388608 pre 1.65ms on 1.66ms post 1.65ms diff 8.27µs
align 4194304 pre 1.63ms on 1.65ms post 1.65ms diff 10.3µs
align 2097152 pre 1.62ms on 1.64ms post 1.64ms diff 6.62µs
align 1048576 pre 1.66ms on 1.66ms post 1.65ms diff 2.68µs
align 524288 pre 1.66ms on 1.64ms post 1.64ms diff -6934ns
align 262144 pre 1.65ms on 1.66ms post 1.66ms diff 197ns
align 131072 pre 1.64ms on 1.64ms post 1.64ms diff 1.64µs
align 65536 pre 1.65ms on 1.62ms post 1.62ms diff -12165n
align 32768 pre 1.66ms on 1.66ms post 1.67ms diff -9644ns
align 16384 pre 1.62ms on 1.62ms post 1.64ms diff -9352ns
bs=16384
align 2147483648 pre 2.39ms on 2.35ms post 2.33ms
diff -7216ns
align 1073741824 pre 2.46ms on 2.44ms post 2.43ms
diff 341ns
align 536870912 pre 2.28ms on 2.28ms post 2.28ms diff -1850ns
align 268435456 pre 2.32ms on 2.28ms post 2.3ms diff -29446n
align 134217728 pre 2.3ms on 2.32ms post 2.32ms diff 7.53µs
align 67108864 pre 2.32ms on 2.31ms post 2.3ms diff 2.12µs
align 33554432 pre 2.38ms on 2.41ms post 2.43ms diff 4µs
align 16777216 pre 2.32ms on 2.28ms post 2.27ms diff -7553ns
align 8388608 pre 2.28ms on 2.28ms post 2.29ms diff -6386ns
align 4194304 pre 2.28ms on 2.28ms post 2.28ms diff -1055ns
align 2097152 pre 2.28ms on 2.26ms post 2.28ms diff -18798n
align 1048576 pre 2.28ms on 2.28ms post 2.26ms diff 9.31µs
align 524288 pre 2.33ms on 2.32ms post 2.32ms diff -4279ns
align 262144 pre 2.29ms on 2.28ms post 2.25ms diff 8.77µs
align 131072 pre 2.3ms on 2.26ms post 2.3ms diff -35064n
align 65536 pre 2.31ms on 2.27ms post 2.28ms diff -33000n
align 32768 pre 2.3ms on 2.31ms post 2.34ms diff -730ns
# flashbench -a
/dev/disk/by-id/usb-ADATA_USB_Flash_Drive_1061309422330015-0\:0
--blocksize=$[10*1024]
align 1342177280 pre 1.66ms on 2.14ms post 1.69ms
diff 465µs
align 671088640 pre 1.66ms on 2.16ms post 1.66ms diff 499µs
align 335544320 pre 1.69ms on 2.19ms post 1.71ms diff 493µs
align 167772160 pre 1.76ms on 2.26ms post 1.75ms diff 510µs
align 83886080 pre 1.62ms on 2.09ms post 1.67ms diff 447µs
align 41943040 pre 1.8ms on 2.33ms post 1.76ms diff 551µs
align 20971520 pre 1.62ms on 2.12ms post 1.64ms diff 490µs
align 10485760 pre 1.64ms on 2.1ms post 1.65ms diff 455µs
align 5242880 pre 1.62ms on 2.08ms post 1.68ms diff 432µs
align 2621440 pre 1.65ms on 2.12ms post 1.68ms diff 456µs
align 1310720 pre 1.6ms on 2.03ms post 1.55ms diff 450µs
align 655360 pre 1.57ms on 2.03ms post 1.62ms diff 437µs
align 327680 pre 1.66ms on 2.08ms post 1.64ms diff 435µs
align 163840 pre 1.63ms on 2.06ms post 1.62ms diff 436µs
align 81920 pre 1.64ms on 2.08ms post 1.64ms diff 447µs
align 40960 pre 1.66ms on 2.19ms post 1.73ms diff 499µs
align 20480 pre 2.07ms on 1.64ms post 1.66ms diff -226664
Greetings,
My name is Luka from the Electronic Recycling Association (www.era.ca). In
hope you might be able to help us, I would like to tell you a little bit
about our charity work.
This is what we do: we are a non-profit organization dedicated in reducing
electronic waste through the reuse and recycling of unwanted computers. We
collect all kinds of IT and electronic equipment (computers, laptops,
printers, telephones etc). Then we refurbish it and donate to various
charities and non-profit organizations. That makes us different from any
other recycler, we want to add value to your company by donating! ERA`s
donations are followed by various media, so it can also help to improve your
company`s social responsibility profile.
This is what we can do for you:
- Pick up all of your old IT & electronic equipment you don`t need any more
at your site,
- Remove all of your company`s data from computers according to military
standards (free hard-drive wiping services plus data removal certificate),
- Refurbish your donated items and donate them to local charities in need in
your behalf.
- Recycle locally all of the equipment that cannot be reused.
With your help we can not only achieve our mission of reducing the negative
impact of electronic waste on our environment, but also ensure that your
unwanted computer equipment is donated to a worthy charity or non-profit
organization. These are the current charities we are trying to help, and the
list is, unfortunately, increasing: http://era.ca/index.php?page=charities.
Please contact me directly on 604 756 1930 if you have any electronic
equipment you would like to donate at this time or if you need any further
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Thank you for your time and have a great day!
Sincerely,
Luka Belik
Donations Coordinator
Electronic Recycling Association
* luka(a)era.ca
* 604 756 1930
* www.era.ca
* 1 403 262 4488 | 1 604 215 4483 | 1 780 455 2088 | 1 877 939 2783
This is to let you know that the migration of lists.linaro.org has been
successfully completed.
As per the email I sent on Wednesday, it may take some time for the new
address of the server to be seen by your computer. You can check this by
trying to connect to the web site:
http://lists.linaro.org/
If you are able to connect and you do not get an error, this means you are
connecting to the new server and you can send email to the lists.
If you experience any problems after the weekend and you find that you
still cannot connect to the server, please reply to this email to let us
know.
Regards
Philip
IT Services Manager
Linaro
Hello
You are receiving this email because you are subscribed to one or more
mailing lists provided by the lists.linaro.org server.
IT Services are announcing planned maintenance for this server scheduled
for *Friday 15th March 2013, starting at 2pm GMT*. The purpose of the work
is to move the service to another server. There will be some disruption
during this maintenance.
In order to ensure that you do not accidentally try to use the service
while it is being moved, the current server will be shut down at 2pm.
A further email will be sent on Friday afternoon to confirm that the
migration of the service is completed. However, due to the way servers are
found, it may take a while before your computer is able to connect to the
relocated service.
After the old server has been shut down, email sent to any of the lists
will be queued, but it is possible that the sending server will still
trying to deliver the email to the old server rather than the new one when
it is started.
It is therefore *strongly* recommended that you do not send any email to an
@lists.linaro.org email address until you can connect to the new service,
which you will be able to test by trying to use a web browser to connect to
http://lists.linaro.org after you receive the email confirming that the
migration has been completed. Since the old service will be shut down, if
you are able to connect, you can be sure you have connected to the new
service.
If by Monday you are still unable to connect to the service or you are not
able to send email to an @lists.linaro.org email address, please send an
email to its(a)linaro.org.
Thank you.
Regards
Philip
IT Services Manager
Linaro
