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ref: document all profiler runtime flags #11382

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13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/aws-lambda/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/connect/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/express/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/fastify/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/hapi/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/koa/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/nestjs/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -71,18 +71,7 @@ Sentry.startSpan(

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
13 changes: 1 addition & 12 deletions docs/platforms/javascript/guides/node/profiling/index.mdx
Original file line number Diff line number Diff line change
Expand Up @@ -131,18 +131,7 @@ Continuous profiling has implications for your org's billing structure. This fea

Under the hood, the Sentry profiler uses V8's [CpuProfiler](https://v8docs.nodesource.com/node-18.2/d2/d34/classv8_1_1_cpu_profiler.html) to collect stack samples. This means that `sentry/profiling-node` is written as a [native add-on](https://nodejs.org/docs/latest-v18.x/api/addons.html) for Node and won't run in environments like Deno or Bun. Profiling enhances tracing by providing profiles for individual transactions. This allows you to look at higher level performance information like transaction and span durations before diving deeper and looking at profiles.

## Runtime Flags

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374) which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
```

We recommend you have your own CPU resource-monitoring in place, because the actual resource use could be environment-dependent.
<Include name="profiling-node-runtime-flags.mdx" />

## Precompiled Binaries

Expand Down
25 changes: 25 additions & 0 deletions includes/profiling-node-runtime-flags.mdx
Original file line number Diff line number Diff line change
@@ -0,0 +1,25 @@

## Runtime Flags
There are three runtime flags you can set that control the behavior of the profiler. Two of the flags relate to how the SDK resolves the profiler binaries. The third alters how the underlying profiler is initialized by [v8](https://v8docs.nodesource.com/).

<Note>
These flags are intended for advanced use cases only. Setting them isn't required for most use cases.
</Note>

- SENTRY_PROFILER_BINARY_PATH

This flag sets the profiler binary path and bypasses arch, platform, and libc checks. It can be useful in some build configurations if you want to override which binary is required at runtime.

- SENTRY_PROFILER_BINARY_DIR

Acts similarly to the flag above, however, this flag only specifies the directory where the binaries are located and defers to the runtime to resolve the correct binary depending on the arch, platform, and libc version.

- SENTRY_PROFILER_LOGGING_MODE

The default mode of the v8 CpuProfiler is [kEagerLogging](https://v8docs.nodesource.com/node-18.2/d2/dc3/namespacev8.html#a874b4921ddee43bef58d8538e3149374), which enables the profiler even when no profiles are active—this is good because it makes calls to `startProfiling` fast with the tradeoff of constant CPU overhead. This behavior can be controlled via the `SENTRY_PROFILER_LOGGING_MODE` environment variable with values of `eager|lazy`. If you opt to use the lazy-logging mode, calls to `startProfiling` may be slow. (Depending on environment and node version, it can be in the order of a few hundred ms.)

Here's an example of starting a server with lazy-logging mode:

```bash
# Run profiler in lazy mode
SENTRY_PROFILER_LOGGING_MODE=lazy node server.js
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