Benchmarking Aiven for Caching performance
Aiven for Caching uses memtier_benchmark, a command-line tool by Redis, for load generation and performance evaluation of NoSQL key-value databases.
redis-benchmark is not supported to work with Aiven services, since
CONFIG command is not allowed to run.
Prerequisites
- An Aiven for Caching service running.
memtier_benchmarkinstalled. To install the tool, download the source code from GitHub, and follow the instructions in the README to install all the dependencies. Next build and install the tool.
The Testing section within the
README is optional.
Running benchmark
Before using memtier_benchmark, explore its capabilities with mentier_benchmark -h or
this Redis article.
Substitute the following variables in the commands. The Overview page of your Aiven for Caching service contains this information.
| Variable | Description |
|---|---|
USERNAME | User name of Aiven for Caching connection |
PASSWORD | Password of Aiven for Caching connection |
HOST | Hostname for Caching connection |
PORT | Port for Caching connection |
The following is a sample command from the
Redis blog. This
command executes 10000 (-n 10000) SET & GET operations with a 1:1 ratio (--ratio 1:1).
It launches 4 threads (-t 4), with each thread opening 25 connections (-c 25). The
tool performs 10 iterations (-x 10) of each run to collect meaningful aggregate
averages.
memtier_benchmark -a 'USERNAME:PASSWORD' -s 'HOST' -p 'PORT' --tls --tls-skip-verify -t 4 -n 10000 --ratio 1:1 -c 25 -x 10 -d 100 --key-pattern S:S
The output provides detailed metrics on operations per second, latency, and throughput for each test run. Below is an example output for a single benchmark cycle:
Writing results to stdout
[RUN #1] Preparing benchmark client...
[RUN #1] Launching threads now...
[RUN #1 100%, 216 secs] 0 threads: 1000000 ops, 1996 (avg: 4621) ops/sec, 277.88KB/sec (avg: 642.15KB/sec), 50.54 (avg: 21.63) msec latency
<<<< many lines for RUN #2 to RUN #9
[RUN #10] Preparing benchmark client...
[RUN #10] Launching threads now...
[RUN #10 100%, 224 secs] 0 threads: 1000000 ops, 4116 (avg: 4444) ops/sec, 572.83KB/sec (avg: 617.53KB/sec), 24.40 (avg: 22.49) msec latency
4 Threads
25 Connections per thread
10000 Requests per client
BEST RUN RESULTS
============================================================================================================================
Type Ops/sec Hits/sec Misses/sec Avg. Latency p50 Latency p99 Latency p99.9 Latency KB/sec
----------------------------------------------------------------------------------------------------------------------------
Sets 2404.11 --- --- 21.62541 20.60700 48.89500 112.63900 339.90
Gets 2404.11 2404.11 0.00 21.62707 20.60700 49.15100 105.98300 328.16
Waits 0.00 --- --- --- --- --- --- ---
Totals 4808.23 2404.11 0.00 21.62624 20.60700 49.15100 111.10300 668.06
Request Latency Distribution
Type <= msec Percent
------------------------------------------------------------------------
SET 11.327 0.000
<<<< many lines
GET 66.559 100.000
---
WAIT 0.000 100.000
WORST RUN RESULTS
============================================================================================================================
Type Ops/sec Hits/sec Misses/sec Avg. Latency p50 Latency p99 Latency p99.9 Latency KB/sec
----------------------------------------------------------------------------------------------------------------------------
Sets 2249.10 --- --- 22.94219 21.63100 47.87100 109.56700 317.98
Gets 2249.10 2249.10 0.00 22.94561 21.63100 47.87100 109.05500 307.00
Waits 0.00 --- --- --- --- --- --- ---
Totals 4498.20 2249.10 0.00 22.94390 21.63100 47.87100 109.56700 624.99
Request Latency Distribution
Type <= msec Percent
------------------------------------------------------------------------
SET 10.047 0.000
<<<< many lines
GET 191.487 100.000
---
WAIT 0.000 100.000
AGGREGATED AVERAGE RESULTS (10 runs)
============================================================================================================================
Type Ops/sec Hits/sec Misses/sec Avg. Latency p50 Latency p99 Latency p99.9 Latency KB/sec
----------------------------------------------------------------------------------------------------------------------------
Sets 2312.01 --- --- 22.42681 21.24700 47.35900 101.88700 326.88
Gets 2312.01 2312.01 0.00 22.42914 21.24700 47.35900 101.88700 315.59
Waits 0.00 --- --- --- --- --- --- ---
Totals 4624.02 2312.01 0.00 22.42798 21.24700 47.35900 101.88700 642.47
Request Latency Distribution
Type <= msec Percent
------------------------------------------------------------------------
SET 9.791 0.000
<<<< many lines
GET 712.703 100.000
---
WAIT 0.000 100.000
This demonstrates the performance data obtainable with memtier_benchmark. The initial
sections present data from the 10 runs. The following sections present the BEST RUN,
WORST RUN and AGGREGATED AVERAGE results as well as the
Request Latency Distribution of the operations.
Running this command on various Aiven for Caching services or the same service under different conditions allows for effective performance comparisons
Aiven has rate limit on services. By default it's 200 new
connections per 0.5 second per CPU core. Also be aware of the connection
limit depending on memory size as explained in
Estimate maximum number of connection.
Aiven enforces a rate limit on services. By default, it's set to 200 new connections
per 0.5 seconds per CPU core. Additionally, consider the connection limit based on memory
size as explained in Estimate maximum number of connection.