Hi Coly,
1.) I have set-up a softraid (raid level 0) with mdadm using two M.2
modules. For one module the throughput is ~350MB/s (no mdadm) for two
modules the throughput is ~500MB/s which is less than factor 1,5 of
the
throughput of a single drive. The filesystem used is ext4. Is there
someone having some values for comparison? For me the throughput gain
seems to be too little. The test was done using a HP Z840 workstation.
Hi Eric,
Could you attach your testing script as well, than we can have a look.
Create RAID0:
$ mdadm --create /dev/md0 --auto md --level=0 --raid-devices=2 /dev/sdb1
/dev/sdc1
Write to bare RAID0:
$ dd if=/dev/zero of=/dev/md0 bs=1G count=1 oflag=dsync
dd will show the throughput
Cheers
Eric
--
To unsubscribe from this list: send the line "unsubscribe linux-raid" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
