[OuttaControl]

Evo me sa write performansama za A400SSD dakle to odgovara onome što sam i ja više manje vidio, sve u svemu puno lošije nego što sam očekivao:

Da je malo veći file, je bolje ali opet ne dovoljno bolje...

pi@raspberrypi:~ $ dd if=/dev/zero of=/mnt/ext4/test.tst bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 11.1344 s, 96.4 MB/s
pi@raspberrypi:~ $ dd if=/dev/zero of=/mnt/ext4/test.tst bs=10M count=1024
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 88.0741 s, 122 MB/s
pi@raspberrypi:~ $ dd if=/dev/zero of=/mnt/ext4/test.tst bs=100M count=102
102+0 records in
102+0 records out
10695475200 bytes (11 GB, 10 GiB) copied, 56.9721 s, 188 MB/s

A ovo su brzine HDDa na prazan disk, dakle HDD, i to SMA, je stvarno brzi od SSD-a za male fajlove

pi@raspberrypi:~ $ dd if=/dev/zero of=/mnt/ext4/test.tst bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 9.0627 s, 118 MB/s
pi@raspberrypi:~ $ dd if=/dev/zero of=/mnt/ext4/test.tst bs=10M count=1024
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 88.663 s, 121 MB/s
pi@raspberrypi:~ $ dd if=/dev/zero of=/mnt/ext4/test.tst bs=100M count=102
102+0 records in
102+0 records out
10695475200 bytes (11 GB, 10 GiB) copied, 87.6379 s, 122 MB/s

a read performanse SSD-a, opet losije nego na windozama, no vise nego dovoljno

pi@raspberrypi:~ $ sudo dd if=/dev/sda1 of=/dev/null bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 3.71376 s, 289 MB/s
pi@raspberrypi:~ $ sudo dd if=/dev/sda1 of=/dev/null bs=10M count=1024
1024+0 records in
1024+0 records out
10737418240 bytes (11 GB, 10 GiB) copied, 39.9774 s, 269 MB/s