Statistics

Package stats defines a lightweight interface for collecting statistics. It doesn't provide an implementation, just the shared interface.

* This package provides Statistical functions Largely inspired from https://github.com/leesper/go_rng/blob/master/gauss.go

Package throttled implements different throttling strategies for controlling access to HTTP handlers. go get gopkg.in/throttled/throttled.v1/... The Interval function creates a throttler that allows requests to go through at a controlled, constant interval. The interval may be applied to all requests (vary argument == nil) or independently based on vary-by criteria. For example: Creates a throttler that will allow a request each 100ms (10 requests per second), with a buffer of 100 exceeding requests before dropping requests with a status code 429 (by default, configurable using th.DeniedHandler or the package-global DefaultDeniedHandler variable). Different paths will be throttled independently, so that /path_a and /path_b both can serve 10 requests per second. The last argument, 50, indicates the maximum number of keys that the throttler will keep in memory. The MemStats function creates a throttler that allows requests to go through only if the memory statistics of the current process are below specified thresholds. For example: Creates a throttler that will allow requests to go through until the number of garbage collections reaches the initial number + 10 (the MemThresholds function creates absolute memory stats thresholds from offsets). The second argument, 10ms, indicates the refresh rate of the memory stats. The RateLimit function creates a throttler that allows a certain number of requests in a given time window, as is often implemented in public RESTful APIs. For example: Creates a throttler that will limit requests to 30 per minute, based on the remote address of the client, and will store the counter and remaining time of the current window in the provided memory store, limiting the number of keys to keep in memory to 1000. The store sub-package also provides a Redis-based Store implementations. The RateLimit throttler sets the expected X-RateLimit-* headers on the response, and also sets a Retry-After header when the limit is exceeded. The API documentation is available as usual on godoc.org: There is also a blog post explaining the package's usage on 0value.com: Finally, many examples are provided in the /examples sub-folder of the repository. The BSD 3-clause license. Copyright (c) 2014 Martin Angers and Contributors.

Package stats is a statistics library created by Engineers at Lyft with support for Counters, Gauges, and Timers.

Package tcpinfo implements encoding and decoding of TCP-level socket options regarding connection information. The Transmission Control Protocol (TCP) is defined in RFC 793. TCP Selective Acknowledgment Options is defined in RFC 2018. Management Information Base for the Transmission Control Protocol (TCP) is defined in RFC 4022. TCP Congestion Control is defined in RFC 5681. Computing TCP's Retransmission Timer is described in RFC 6298. TCP Options and Maximum Segment Size (MSS) is defined in RFC 6691. Shared Use of Experimental TCP Options is defined in RFC 6994. TCP Extensions for High Performance is defined in RFC 7323. NOTE: Older Linux kernels may not support extended TCP statistics described in RFC 4898.

Binary dnsmasq_exporter is a Prometheus exporter for dnsmasq statistics.

Package rtcp implements encoding and decoding of RTCP packets according to RFC 3550. RTCP is a sister protocol of the Real-time Transport Protocol (RTP). Its basic functionality and packet structure is defined in RFC 3550. RTCP provides out-of-band statistics and control information for an RTP session. It partners with RTP in the delivery and packaging of multimedia data, but does not transport any media data itself. The primary function of RTCP is to provide feedback on the quality of service (QoS) in media distribution by periodically sending statistics information such as transmitted octet and packet counts, packet loss, packet delay variation, and round-trip delay time to participants in a streaming multimedia session. An application may use this information to control quality of service parameters, perhaps by limiting flow, or using a different codec. Decoding RTCP packets: Encoding RTCP packets:

Package taskstats provides access to Linux's taskstats interface, for sending per-task, per-process, and cgroup statistics from the kernel to userspace. For more information on taskstats, please see:

Package onlinestats provides online, one-pass algorithms for descriptive statistics. The implementation is based on the public domain code available at http://www.johndcook.com/skewness_kurtosis.html . The linear regression code is from http://www.johndcook.com/running_regression.html .

Package micro is a pluggable framework for microservices

Package micro is a pluggable framework for microservices

Package micro is a pluggable framework for microservices