Den tis 26 apr. 2022 kl 22:50 skrev Mihai Popescu <[email protected]>: > $ time dd if=/dev/zero of=test10g.dat bs=1m count=10240 conv=fsync > 10737418240 bytes transferred in 260.289 secs (41251827 bytes/sec) > $ time dd if=/dev/zero of=test10g.dat bs=1m count=10240 conv=fsync > 10737418240 bytes transferred in 24.006 secs (447266094 bytes/sec) > > The test is done using a mechanical disk and a ssd one. I think the > dude telling that some entry level ssd have the same performance like > mechanical disks is the same with the one telling ssd will wear very > fast. My mistake to believe it without testing.
Even if the best-case transfer speeds were the same, the zero seek times of ssds will make a huge difference when dealing with all other kinds of IO than "super large linear writes", which is basically 99.9% of all IO you do when using the computer. -- May the most significant bit of your life be positive.
