Hetzner Sysbench Tests
CPX21 - Nov 29 2021

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Provider Plan Cost per month Disk space (GB) Memory (GB) Num Cores
Hetzner CPX21 7.55€ 80 4.0 3

Learn how to read Sysbench test results


The cpu test is one of the most simple benchmarks in SysBench. In this mode each request consists in calculation of prime numbers up to a value specified by the --cpu-max-primes option. All calculations are performed using 64-bit integers. Each thread executes the requests concurrently until either the total number of requests or the total execution time exceed the limits specified with the common command line options.

Test Name total_time per_request_avg per_request_p95 events_rate
Multithreaded 30.00 s 2.16 ms 9.56 ms 1852 ops/sec
Single Thread 30.00 s 1.61 ms 1.64 ms 622.57 ops/sec


This test mode can be used to produce various kinds of file I/O workloads. At the prepare stage Sysbench creates a specified number of files with a specified total size, then at the run stage, each thread performs specified I/O operations on this set of files.
Sysbench fileio tests are run in synchronous mode, all operations are buffered. All tests are run with a number of threads that matches the number of vCPUs found in the instance with a minimum of 4.

Test Name read_transfer_rate write_transfer_rate avg_latency p95_latency
Random Read 4k 129.69 MiB/s 0 MiB/s 0.12 ms 0.25 ms
Random Read-Write 4k 27.21 MiB/s 18.14 MiB/s 0.15 ms 0.35 ms
Random Write 4k 0 MiB/s 40.46 MiB/s 0.17 ms 0.46 ms
Sequential Read 534.10 MiB/s 0 MiB/s 0.03 ms 0.21 ms
Sequential Read 128k 1035 MiB/s 0 MiB/s 0.48 ms 0.60 ms
Sequential Write 0 MiB/s 77.59 MiB/s 0.09 ms 0.21 ms
Sequential Write 128k 0 MiB/s 584.08 MiB/s 0.37 ms 0.42 ms


Memory allocation and transfer speed.

Test Name total_time transfer_rate operations_rate
Read 15.84 s 12.63 GiB/sec 13239685 ops/sec
Read 1MB 7.78 s 128.51 GiB/sec 131593 ops/sec
Write 30.00 s 3.27 GiB/sec 3429395 ops/sec
Write 1MB 15.27 s 26.19 GiB/sec 26822 ops/sec

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