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Performance Tests

Basic ways to test XCP-ng performances.

  • compare speed of write/read of disks in the old and in the new release
  • compare speed of interfaces in the old and in the new release
  • (add more here...)

Example Storage Performance Tests Using fio​

Random write test for IOP/s, i.e. lots of small files​

sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G --readwrite=randwrite --ramp_time=4

Random Read test for IOP/s, i.e. lots of small files​

sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4k --iodepth=64 --size=4G --readwrite=randread --ramp_time=4

Sequential write test for throughput, i.e. one large file​

sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4M --iodepth=64 --size=4G --readwrite=write --ramp_time=4

Sequential Read test for throughput, i.e. one large file​

sync;fio --randrepeat=1 --ioengine=libaio --direct=1 --gtod_reduce=1 --name=test --filename=test --bs=4M --iodepth=64 --size=4G --readwrite=read --ramp_time=4

VM Export / Import​

  • Export using ZSTD compression
  • Import using ZSTD compression
  • Export using gzip compression
  • Import using gzip compression

Guest tools and drivers​

  • Linux VM created on an older pool, with older guest tools not updated
  • Update existing Linux guest tools
  • Installation of guest tools on new Linux VM
  • Windows VM from an upgraded pool, with older guest drivers not updated
  • Update existing Windows guest drivers
  • Installation of guest drivers on new Windows VM