metrics

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• I had searched in the issues and found no similar feature requirement.

Description

I find some configurations are in configurations.md , but not in the agent.config , such as agent.trace_segment_ref_limit_per_span 、agent.instance_properties[key]=value . Otherwise , the configuration ```

It looks like the following transaction breakdown aggregation is unused:

https://github.com/elastic/kibana/blob/00bb59713ed115343eb70d4e39059476edafbade/x-pack/plugins/apm/server/lib/transactions/breakdown/index.ts#L54-L58

TODO:

• Verify whether it's used anywhere. If not remove it.
• Rename the function getTransactionBreakdown to getSpanBreakdown

If I set all the prefixes (globalPrefix, prfixTimer, etc.) to "", what kind of ramifications will that have on the server side if any? Will all the timers, gauges, counters be calculated as normal or will see if any side effects?

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• I have searched for duplicate or closed issues and discussions.
• I have read the guide for submitting bug reports.
• I have done my best

Host operating system: output of uname -a

Linux sarbian 5.13.5-arch1-1 #1 SMP PREEMPT Sun, 25 Jul 2021 18:02:58 +0000 x86_64 GNU/Linux

node_exporter version: output of node_exporter --version

node_exporter, version 1.2.0 (branch: tarball, revision: 1.2.0)
build user: someone@builder
build date:
go version: go1.16.5
platform: linux/amd64

n

The goal is to create thin, easy to use PHP client for sending ILP messages. We already have Java client:

https://github.com/questdb/questdb/blob/master/core/src/main/java/io/questdb/cutlass/line/LineProtoSender.java

Perhaps port this one maintaining the same API

Is your feature request related to a problem?

The first step towards app optimization

Please describe.
Configure whyDidYouRender under the development env

**Note: make sure it is compatible with all the custom hooks that we are using in the project **

For the moment there is no ability to use IAM instance profile for access to s3 bucket as it is not described in documentation
Could yo

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提修复PR？
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提Feature？
建议先将想法提出，不着急写代码，与社区同道沟通，大家觉得OK再做代码实现

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The PyTorch XLA install link in MNIST_on_TPU is outdated and doesn't work anymore, this can be updated to the 'nightly' version or getting the latest version from XLA repo as done in this example.

As we all know golang has give us the feature that convert proto to json with https://github.com/golang/protobuf/blob/master/jsonpb/encode.go ,and with encode.go ,we can define diffrent style like casesensitive , emit empty , json indent and so on , we can see [Customizing Protobuf JSON Serialization in Go](https://seb-nyberg.medi