Nothing in the logs directly stands out. I suggest to do soem test to figure out what might be the problem.
Let’s start with the SD Card
First install iozone3 (and let’s measure that time already) time sudo apt-get install iozone3
(that should not take longer than 10 seconds)
After it is installed run iozone -e -I -a -s 50M -r 4k -r 512k -i 0 -i 1 -i 2 | tail -4 | head -2 | awk '{print "Block Size " $2"k", "Write " $3/1024, "Rewrite " $4/1024, "Read " $5/1024, "Reread " $6/1024, "Random Read " $7/1024, "Random Write "$8/1024}'
That will take a while and then printout two lines (one for 4k and one for 512k) share those.
OK Install of iozone3 (I copied the whole procedure, so you can see download times and so on):
osmc@osmc2:~$ time sudo apt-get install iozone3
Reading package lists… Done
Building dependency tree
Reading state information… Done
The following packages were automatically installed and are no longer required:
armv7-libcrossguid-osmc libapt-inst1.5 libavcodec56 libavresample2
libavutil54 libbind9-90 libdbus-1-dev libdns100 libdpkg-perl
libfftw3-single3 libgif4 libgnutls-deb0-28 libhogweed2 libicu52 libisc95
libisccc90 libisccfg90 libjson-c2 liblwres90 libmicrohttpd10
libmysqlclient18 libnettle4 libntdb1 libopenjpeg5 libplist2 libpng12-0
libpsl0 libschroedinger-1.0-0 libssl1.0.0 libvpx1 libwebp5 libwebpdemux1
libwebpmux1 libwebrtc-audio-processing-0 libx264-142 libxtables10 pkg-config
python-dbus-dev
Use ‘sudo apt autoremove’ to remove them.
The following NEW packages will be installed:
iozone3
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 428 kB of archives.
After this operation, 656 kB of additional disk space will be used.
Get:1 Index of /debian stretch/non-free armhf iozone3 armhf 429-3+b1 [428 kB]
Fetched 428 kB in 0s (1125 kB/s)
Selecting previously unselected package iozone3.
(Reading database … 28851 files and directories currently installed.)
Preparing to unpack …/iozone3_429-3+b1_armhf.deb …
Unpacking iozone3 (429-3+b1) …
Setting up iozone3 (429-3+b1) …
real 0m28.346s
user 0m4.010s
sys 0m0.640s
Measurement of SD-card speed (took a really long while…) :
Block Size 4k
Write 0.0175781 Rewrite 0.0175781
Read 6.86523 Reread 7.33105
Random Read 6.33984 Random Write 0.0175781
Block Size 512k
Write 1.74121 Rewrite 1.7627
Read 18.498 Reread 21.7236
Random Read 21.6299 Random Write 1.75684
Write speeds are seemingly extremely slow, read speeds are not that stellar either. I don’t know what these numbers should be, but they seem very low.
It does seem there must be something wrong with my card.
I will try to contact @sam_nazarko to see what can be done.
Perhaps some settings can be changed.
I was trying to make certain I got a good card by bying one in the OSMC shop, but it seems I got a defective one.
I was wondering why all people kept saying that the pi runs better on SD-cards, my experience has been much better with USB installs…
You can return it to us and we will replace it with a new card.
How long have you had the card? It’s possible it was always defective to begin with and you never noticed this until recently.
Something definitely is wrong, but maybe not to blame the card directly. So let’s try the backup to the other card first as your values are so much of the chart and then decide
Found a 16Gb microsd card, made an image from the OSMC card and tried to write it. But the replacement card is smaller by a few sectors, and then it wont work…
my personal suggestion is to first figure out whether the entire SD-card is error free and works as expected:
Make an image backup of the sd-card with a Windows PC and Win32DiskImager
Follow the two steps in PI 3 b osmc boot error - #9 by JimKnopf post 9; report here the average write and read speed after the test. I know it sounds very time-consuming but while the h2testw writes to the card watch for the write speed whether there are hard speed drops
if the card is entirely error-free and shows normal average speed behavior, restore the image backup
With that we should have understood for sure whether the card is (part of) the problem or not.
Keep my fingers crossed for you that it is only a malfunctioning card.
