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File To TCP Performance Test

This test measures the performance of the subject's ability to tail data from local files and send it over TCP.

Design

  1. Each subjects is configured to tail a single glob pattern and send data over TCP.
  2. The TCP consmer is a separate instance to help ensure performance is not tainted.
  3. Each subject is started and ran for 60 seconds.
  4. This test contains 2 separate configurations: multi_file and single_file to test the performance of both. The multi_file configuration simply creates 10 files.
  5. Performance data is collected and persisted to S3 for analysis.

Results

Multi-file

$ bin/compare -t file_to_tcp_performance -c multi_file

| Metric           | filebeat   | fluentbit | fluentd   | logstash   | splunk_hf | splunk_uf | vector      |
|:-----------------|:-----------|:----------|:----------|:-----------|:----------|:----------|:------------|
| Disk Thrpt (avg) | 7.8MiB/s   | 35MiB/s   | 26.1MiB/s | 3.1MiB/s   | 39MiB/s   | 40.1MiB/s | 76.7MiB/s W |
| CPU sys (max)    | 4.7        | 4.5 W     | 6.6       | 46.5       | 34.7      | 6.6       | 23          |
| CPU usr (max)    | 63.8       | 50.3      | 50.5      | 98         | 84.7      | 18.1 W    | 74.9        |
| Load 1m (avg)    | 1          | 0.6 W     | 0.6       | 2.2        | 2.6       | 0.6       | 1.5         |
| Mem used (max)   | 170.7MiB W | 370.3MiB  | 890.6MiB  | 763.7MiB   | 442.6MiB  | 241.4MiB  | 188.1MiB    |
| Disk read (sum)  | 466.9MiB   | 2gib      | 1.5gib    | 187.3MiB W | 2.3gib    | 2.4gib    | 4.6gib      |
| Disk writ (sum)  | 177.6MiB   | 6.1MiB W  | 11.6MiB   | 602.6MiB   | 54.3MiB   | 24.4MiB   | 16.1MiB     |
| Net recv (sum)   | 240.6kib   | 6.6MiB    | 2.3MiB    | 2.4MiB     | 14.7MiB   | 3MiB      | 22.4MiB W   |
| Net send (sum)   | 167.3MiB   | 2gib      | 573.7MiB  | 65.2MiB    | 1007.4MiB | 1.2gib    | 2.3gib      |
| TCP estab (avg)  | 183        | 1070      | 183       | 175        | 1358      | 122       | 186         |
| TCP sync (avg)   | 0          | 0         | 0         | 0          | 0         | 0         | 0           |
| TCP close (avg)  | 0          | 1         | 0         | 0          | 0         | 0         | 0           |
-------------------------------------------------------------------------------------------------------------
W = winner
filebeat = 7.1.1
fluentbit = 1.1.0
fluentd = 3.3.0-1
logstash = 7.0.1
splunk_heavy_forwarder = 7.2.6-c0bf0f679ce9
splunk_universal_forwarder = 7.2.5.1-962d9a8e1586
vector = 0.2.0

Single-file

$ bin/compare -t file_to_tcp_performance -c single_file

Try It

bin/test -t file_to_tcp_performance -c <multi_file|single_file>

Resources