Kernel 5.4 Development Party

Test and fix the Kernel 5.4 features
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memeka
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Re: Kernel 5.4 Development Party

Unread post by memeka » Wed Dec 04, 2019 8:54 am

hominoid wrote: โ†‘
Tue Dec 03, 2019 10:55 am
memeka wrote: โ†‘
Mon Dec 02, 2019 5:55 pm
Can someone else post some sd card benchmarks?
This is a 32GB SanDisk Ultra

Code: Select all

hominoid@xu4-lab:~$ uname -a
Linux xu4-lab 5.4.0+ #2 SMP Sat Nov 30 23:09:24 EST 2019 armv7l armv7l armv7l GNU/Linux

hominoid@xu4-lab:~$ time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync"; rm ddfile
250000+0 records in
250000+0 records out
2048000000 bytes (2.0 GB, 1.9 GiB) copied, 93.7846 s, 21.8 MB/s

real	1m38.407s
user	0m0.437s
sys	0m25.387s
This is my 16GB Sandisk Ultra - class 10, not UHS:

Code: Select all

odroid@odroid:~$ time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync"; rm ddfile
dd: error writing 'ddfile': No space left on device
151778+0 records in
151777+0 records out
1243361280 bytes (1.2 GB, 1.2 GiB) copied, 750.181 s, 1.7 MB/s

real    12m30.194s
user    0m0.129s
sys     0m12.217s
Maybe there's something wrong with it.... this is my Samsung 8GB UHS-1:

Code: Select all

odroid@hc1:~$ time sh -c "dd if=/dev/zero of=ddfile bs=8k count=250000 && sync"; rm ddfile
250000+0 records in
250000+0 records out
2048000000 bytes (2.0 GB, 1.9 GiB) copied, 64.5513 s, 31.7 MB/s

real    1m8.663s
user    0m0.214s
sys     0m26.716s

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odroid
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Re: Kernel 5.4 Development Party

Unread post by odroid » Wed Dec 04, 2019 10:48 am

We've test the micro SD card performance between Kernel 4.14 and 5.4.
There was no serious performance difference. :)
- 5.4 (W/R, MiB/sec)
UHS-1: 31.2 / 80.5
Class10: 6.4 / 20.2
- 4.14 (W/R)
UHS-1: 33.9 / 84.3
Class10: 6.4 / 19.5

5.4 kernel UHS-1

Code: Select all

root@odroid:/media/microsd# dd if=/dev/zero of=test oflag=direct bs=8M count=64
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 17.2109 s, 31.2 MB/s
root@odroid:/media/microsd# dd if=test of=/dev/null iflag=direct bs=8M
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 6.67027 s, 80.5 MB/s
5.4 kernel Non-UHS Class 10

Code: Select all

root@odroid:/media/microsd# !239
dd if=/dev/zero of=test oflag=direct bs=8M count=64
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 84.2938 s, 6.4 MB/s
root@odroid:/media/microsd# !240
dd if=test of=/dev/null iflag=direct bs=8M
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 26.5162 s, 20.2 MB
4.14 kernel UHS-1

Code: Select all

root@odroid:/media/microsd# dd if=/dev/zero of=test oflag=direct bs=8M count=64
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 15.8499 s, 33.9 MB/s
root@odroid:/media/microsd# dd if=test of=/dev/null iflag=direct bs=8M
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 6.36845 s, 84.3 MB/s
4.14 kernel Non-UHS Class 10

Code: Select all

root@odroid:/media/microsd# dd if=/dev/zero of=test oflag=direct bs=8M count=64
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 83.2994 s, 6.4 MB/s
root@odroid:/media/microsd# !52
dd if=test of=/dev/null iflag=direct bs=8M
64+0 records in
64+0 records out
536870912 bytes (537 MB, 512 MiB) copied, 27.5477 s, 19.5 MB/s
I think memeka's old card seems to have too many worn out NAND cells.

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Re: Kernel 5.4 Development Party

Unread post by AreaScout » Wed Dec 04, 2019 6:45 pm

    @odroid

    Any news on the LCD driver ? I would love to test this

    RG

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    Re: Kernel 5.4 Development Party

    Unread post by odroid » Thu Dec 05, 2019 9:55 am

    @AreaScout,
    We need around one week to implement the SPI LCD drivers due to some other urgent jobs.

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    Re: Kernel 5.4 Development Party

    Unread post by AreaScout » Thu Dec 05, 2019 4:11 pm

      That's great news ! ๐Ÿ˜€

      RG
      Last edited by AreaScout on Thu Dec 05, 2019 4:15 pm, edited 1 time in total.

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      Re: Kernel 5.4 Development Party

      Unread post by rooted » Thu Dec 05, 2019 4:13 pm

      AreaScout wrote:
        That's great news ! Image

        RG
        I've had no problems with 5.4 on the original cloudshell but an waiting for this since I enjoy your display application on the CS2.
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        Re: Kernel 5.4 Development Party

        Unread post by AreaScout » Thu Dec 05, 2019 5:50 pm

          @rooted

          Good to here, there is quite a "fan-base" around that tool, it's been downloaded more then 1000 times :)

          P.S.: I can't find the thank you button any more, bug ?

          RG
          Last edited by AreaScout on Thu Dec 05, 2019 6:38 pm, edited 1 time in total.
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          Re: Kernel 5.4 Development Party

          Unread post by odroid » Thu Dec 05, 2019 6:30 pm

          We've just updated the server and rebooted. Its uptime was over 2.5 years and there were too much garbage in the RAM probably.
          The forum and wiki responsiveness seems to be much faster now but there are a few minor SQL related problems. We are trying to fix it.
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          Re: Kernel 5.4 Development Party

          Unread post by AreaScout » Thu Dec 05, 2019 6:39 pm

            @odroid

            Yes site response is better now, the 'thank you' button is only disabled for this sub-forum it seems, so it's just a setup I think

            RG
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            Re: Kernel 5.4 Development Party

            Unread post by odroid » Thu Dec 05, 2019 7:14 pm

            I've pressed the "Thank you" button on your post and it seems to be working. :)

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            Re: Kernel 5.4 Development Party

            Unread post by AreaScout » Thu Dec 05, 2019 8:19 pm

              This is strange, I see that you liked the post but I can't like yours, the button is missing :o

              RG
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              Re: Kernel 5.4 Development Party

              Unread post by tobetter » Thu Dec 05, 2019 8:53 pm

              AreaScout wrote: โ†‘
              Thu Dec 05, 2019 8:19 pm
                This is strange, I see that you liked the post but I can't like yours, the button is missing :o

                RG
                Ok, now you can.
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