---
title: profiler package
description: The profiler package provides performance profiling tools for Flux queries and operations.
url: https://docs.influxdata.com/flux/v0/stdlib/profiler/
estimated_tokens: 596
product: Flux
version: v0
publisher: InfluxData
canonical: https://docs.influxdata.com/flux/v0/stdlib/profiler/
date: '2024-02-05T17:51:51+01:00'
lastmod: '2024-02-05T17:51:51+01:00'
---

* Flux 0.82.0+

InfluxDB support

The `profiler` package provides performance profiling tools for Flux queries and operations.

Profile results are returned as an extra result in the response named according to the profiles which are enabled.

## Options

```js
option profiler.enabledProfilers = [""]
```

### enabledProfilers

`enabledProfilers` is a list of profilers to enable during execution.

## Available profilers

* [query](#query)
* [operator](#operator)

### query

Provides statistics about the execution of an entire Flux script.
When enabled, results include a table with the following columns:

* **TotalDuration**: total query duration in nanoseconds.
* **CompileDuration**: number of nanoseconds spent compiling the query.
* **QueueDuration**: number of nanoseconds spent queueing.
* **RequeueDuration**: number of nanoseconds spent requeueing.
* **PlanDuration**: number of nanoseconds spent planning the query.
* **ExecuteDuration**: number of nanoseconds spent executing the query.
* **Concurrency**: number of goroutines allocated to process the query.
* **MaxAllocated**: maximum number of bytes the query allocated.
* **TotalAllocated**: total number of bytes the query allocated (includes memory that was freed and then used again).
* **RuntimeErrors**: error messages returned during query execution.
* **flux/query-plan**: Flux query plan.
* **influxdb/scanned-values**: value scanned by InfluxDB.
* **influxdb/scanned-bytes**: number of bytes scanned by InfluxDB.

### operator

The `operator` profiler output statistics about each operation in a query.[Operations executed in the storage tier](/influxdb/cloud/query-data/optimize-queries/#start-queries-with-pushdown-functions)return as a single operation.
When the `operator` profile is enabled, results include a table with a row
for each operation and the following columns:

* **Type:** operation type
* **Label:** operation name
* **Count:** total number of times the operation executed
* **MinDuration:** minimum duration of the operation in nanoseconds
* **MaxDuration:** maximum duration of the operation in nanoseconds
* **DurationSum:** total duration of all operation executions in nanoseconds
* **MeanDuration:** average duration of all operation executions in nanoseconds

#### Related

* [Optimize Flux queries](/influxdb/v2/query-data/optimize-queries/)

[optimize](/flux/v0/tags/optimize/)