Software RAID and Encrypted Filesystem Benchmarks

questions

hardware

HP Netserver lp1000r
Dual 933 Mhz CPU
1.75 GB RAM
3 × 74 GB SCSI, 10K RPM

software

kernel 2.6.8 single cpu
bonnie++
dm-crypt
loop-aes

tests

Both tests use bonnie++ to test the disks.

overall

Overall, what it the relative penalty of RAID and an encrypted filesystem? This chart gives you some idea.

NOTE: Unfortunately, the tests for this chart were made using an un-optimized kernel, so it may exaggerate the expense of CPU intensive activity, such as software raid and encrypted filesystems. All the other tests on these pages were run with a 686 optimized kernel. Maybe someday we will re-run these as well.