---
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: 914
product: Flux
version: v0
---

# profiler package

-   Flux 0.82.0+
-   View 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/)