Filesystem tests

• For bonnie++ tests run something like _bonnie++ {-u 101} -f -s(2*Mem)g -d {path}
  • Where -u 101 switches to a different user if root, directory must be world writable
  • -f does fast tests, no per char I/O
  • -s(2*Mem)g is 2 times memory, 8g in our case to avoid cache hits
  • -d {path} is path to filesystem, could be '.'
• For iozone tests run something like iozone -ec -t 16 -r 1M -s {2*Mem}g -+n -i 0 -i 1
  • -ec clears cache and buffers between tests
  • -t 16 runs 16 threads
  • -r 1M does 1MB I/Os
  • -s (2*Mem)g is 2 times memory, again 8g in our case.
  • -+n for no retests
  • -i 0 -i 1 to do write and read tests only

Multiple clients will be needed to actually excercise all of the lustre nodes. It will take 2-3

Green Bank Lustre Tests

Results for various GB lustre filesystem tests against the VEGAS filestore.

• Single client via lnet router at 1Gbit: makar.xlsx

• Single client via QDR ib: newton.xlsx

• 1st of 2 clients attached via QDR ib.: newton-1-2.xlsx

• 2nd of 2 clients attached via QDR ib.: fourier-2-2.xlsx

-- JamesRobnett - 2011-07-15