entware disk speed test application?

[bozolino]

is there an opkg to perform usb disk speed tests on a asuswrt-merlin router via terminal?

 

[Nullity]

I thought you could use dd (ex. "dd if=/dev/zero of=100MB.test bs=1M count=100 conv=fsync" and make sure you are in a directory on the disk) but the dd on my AsusWRT-merlin does not spit out stats. Maybe try the entware version of busybox, rather than the included one?

Maybe hdparm?

 

[bozolino]

@Nullity: thanks! i did opkg install hdparm then tested the read speeds:

1. with cache
hdparm -tT /dev/sda1
2. without cache
hdparm -tT --direct /dev/sda1

according to this link, write speeds can be tested with
dd if=/dev/zero of=tempfile bs=1M count=256 conv=fdatasync,notrunc
but upon entering this, my router tells me
dd: invalid argument 'fdatasync' to 'conv'

can anyone please tell us to correctly use dd to test read/write speeds on entware?

 

[Nullity]

If you run "dd --help" you will see that the dd included with AsusWRT's busybox does not support conv=fdatasync but it does support conv=fsync.

Did you try entware's busybox? Like I said in my post, AsusWRT's dd does not seem to share stats...

 

[bozolino]

thanks! i have installed busybox from entware and used this string:
dd if=/dev/zero of=tempfile bs=1M count=256 conv=fsync,notrunc
output:
256+0 records in
256+0 records out
so no speed display yet... will keep looking. who has a hint?

 

[Nullity]

Actually, just install coreutils-dd then run that dd command you found.

 

[bozolino]

that's it. thanks!

so here's the adapted step-by-step - assuming your disk is located at /dev/sda1:

1. install hdparm and coreutils-dd
opkg install hdparm coreutils-dd
2. test raw read speed without cache
sudo hdparm -tT /dev/sda1
3. test raw read speed with cache
sudo hdparm -tT --direct /dev/sda1
4. test partition read speed
cd /mnt/sda1
dd if=/dev/zero of=tempfile bs=1M count=1024 conv=fsync,notrunc
5. clear cache
echo 3 | tee /proc/sys/vm/drop_caches
6. test partition write speed (uncached)
dd if=tempfile of=/dev/null bs=1M count=1024
7. test partition write speed (cached)
dd if=tempfile of=/dev/null bs=1M count=1024
8. delete test file
rm tempfile