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Performance.md

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Performance

Benchmarks

Logs

Benchmark setup

The following benchmark has been compiled on an Amazon m4.large instance (which has 2 CPU cores and 8 GB of memory available).

It can be used when estimating the required CPU resources for logs collection using filelogreceiver.

CPU usage guidelines

Benchmark - CPU usage for particular average message size and EPS

Measured CPU usage for particular Events Per Second (EPS) average message size.

100B 512B 1KB 5KB 10KB
EPS - - - - -
100 1.14% 1% 1.01% 1.4% 3.78%
200 1.29% 1.4% 1.41% 2.57% 5.36%
500 2.75% 2.71% 2.95% 5.7% 10.68%
1000 4.74% 5.07% 5.32% 11.3% 20.12%
1500 7.08% 7.29% 7.99% 16.93% 27.96%
2000 9.64% 9.56% 10.39% 22.51% 36.59%
Benchmark - EPS for average message size and CPU usage

Events Per Second (EPS) achieved for a particular average message size and CPU usage.

100B 512B 1KB 5KB 10KB
Average CPU usage - - - - -
5% 2000 1100 1000 150 200
10% 3500 2100 1500 450 300
20% 6500 4100 3000 1200 700
50% 14000 10100 8500 -* -*
90% -* 19100 -* -* -*

* - cells without a resulting EPS come from the fact that the CPU utilization didn't reach the designated CPU utilization during the benchmark run.

The above table can be interpreted in the following way:

For an average CPU usage of 5%

  • 10 KB logs can be ingested at 200 logs/sec (2000 KB/sec).
  • 1 KB logs can be ingested at 1000 logs/sec (1000 KB/sec).

This shows that the collector performs better when it is made to ingest bigger log entries (which is expected due to less overhead coming from timestamp parsing etc.).

Memory usage guidelines

Benchmark - memory usage for particular average message size and EPS

Measured memory usage (in MB) for particular Events Per Second (EPS) average message size.

100B 512B 1KB 5KB 10KB
EPS - - - - -
100 113.14 116.16 117.1 116.99 112.59
200 115.16 118.55 116.8 119.67 127.02
500 118.24 121.79 122.78 127.87 142.73
1000 121.6 126.75 127.94 140.11 106.82
1500 128.54 131.9 137.69 95.21 113.89
2000 130.62 125.27 144.59 98.62 134.61

Fine Tuning

There are a couple configuration options that can help with performance in specific scenarios.

Sumo Logic Exporter

The sumologicexporter sends data to Sumo Logic.

It has the following features that can help with performance:

  • retry_on_failure with its initial_interval, max_interval and max_elapsed_time settings,
  • sending_queue with its num_consumers, queue_size settings,
  • timeout.

Read more about these features in the Sumo Logic Exporter docs.

Batch Processor

The batchprocessor joins records of each type in batches.

It has the following features that can help with performance:

  • send_batch_size,
  • send_batch_max_size,
  • timeout.

Read more about these features in the Batch Processor docs.

Memory Limiter Processor

The memorylimiterprocessor prevents out-of-memory crashes for the collector process by monitoring the amount of memory used by the collector and forcing it to lower its memory consumption.

Read more about its features in the Memory Limiter Processor docs.