prometheus-metrics-ghc (empty) → 0.1.0.0
raw patch · 5 files changed
+378/−0 lines, 5 filesdep +basedep +doctestdep +prometheus-clientsetup-changed
Dependencies added: base, doctest, prometheus-client, utf8-string
Files
- LICENSE +202/−0
- Setup.hs +2/−0
- prometheus-metrics-ghc.cabal +41/−0
- src/Prometheus/Metric/GHC.hs +124/−0
- tests/doctest.hs +9/−0
+ LICENSE view
@@ -0,0 +1,202 @@++ Apache License+ Version 2.0, January 2004+ http://www.apache.org/licenses/++ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION++ 1. Definitions.++ "License" shall mean the terms and conditions for use, reproduction,+ and distribution as defined by Sections 1 through 9 of this document.++ "Licensor" shall mean the copyright owner or entity authorized by+ the copyright owner that is granting the License.++ "Legal Entity" shall mean the union of the acting entity and all+ other entities that control, are controlled by, or are under common+ control with that entity. For the purposes of this definition,+ "control" means (i) the power, direct or indirect, to cause the+ direction or management of such entity, whether by contract or+ otherwise, or (ii) ownership of fifty percent (50%) or more of the+ outstanding shares, or (iii) beneficial ownership of such entity.++ "You" (or "Your") shall mean an individual or Legal Entity+ exercising permissions granted by this License.++ "Source" form shall mean the preferred form for making modifications,+ including but not limited to software source code, documentation+ source, and configuration files.++ "Object" form shall mean any form resulting from mechanical+ transformation or translation of a Source form, including but+ not limited to compiled object code, generated documentation,+ and conversions to other media types.++ "Work" shall mean the work of authorship, whether in Source or+ Object form, made available under the License, as indicated by a+ copyright notice that is included in or attached to the work+ (an example is provided in the Appendix below).++ "Derivative Works" shall mean any work, whether in Source or Object+ form, that is based on (or derived from) the Work and for which the+ editorial revisions, annotations, elaborations, or other modifications+ represent, as a whole, an original work of authorship. For the purposes+ of this License, Derivative Works shall not include works that remain+ separable from, or merely link (or bind by name) to the interfaces of,+ the Work and Derivative Works thereof.++ "Contribution" shall mean any work of authorship, including+ the original version of the Work and any modifications or additions+ to that Work or Derivative Works thereof, that is intentionally+ submitted to Licensor for inclusion in the Work by the copyright owner+ or by an individual or Legal Entity authorized to submit on behalf of+ the copyright owner. For the purposes of this definition, "submitted"+ means any form of electronic, verbal, or written communication sent+ to the Licensor or its representatives, including but not limited to+ communication on electronic mailing lists, source code control systems,+ and issue tracking systems that are managed by, or on behalf of, the+ Licensor for the purpose of discussing and improving the Work, but+ excluding communication that is conspicuously marked or otherwise+ designated in writing by the copyright owner as "Not a Contribution."++ "Contributor" shall mean Licensor and any individual or Legal Entity+ on behalf of whom a Contribution has been received by Licensor and+ subsequently incorporated within the Work.++ 2. Grant of Copyright License. Subject to the terms and conditions of+ this License, each Contributor hereby grants to You a perpetual,+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable+ copyright license to reproduce, prepare Derivative Works of,+ publicly display, publicly perform, sublicense, and distribute the+ Work and such Derivative Works in Source or Object form.++ 3. Grant of Patent License. Subject to the terms and conditions of+ this License, each Contributor hereby grants to You a perpetual,+ worldwide, non-exclusive, no-charge, royalty-free, irrevocable+ (except as stated in this section) patent license to make, have made,+ use, offer to sell, sell, import, and otherwise transfer the Work,+ where such license applies only to those patent claims licensable+ by such Contributor that are necessarily infringed by their+ Contribution(s) alone or by combination of their Contribution(s)+ with the Work to which such Contribution(s) was submitted. If You+ institute patent litigation against any entity (including a+ cross-claim or counterclaim in a lawsuit) alleging that the Work+ or a Contribution incorporated within the Work constitutes direct+ or contributory patent infringement, then any patent licenses+ granted to You under this License for that Work shall terminate+ as of the date such litigation is filed.++ 4. Redistribution. You may reproduce and distribute copies of the+ Work or Derivative Works thereof in any medium, with or without+ modifications, and in Source or Object form, provided that You+ meet the following conditions:++ (a) You must give any other recipients of the Work or+ Derivative Works a copy of this License; and++ (b) You must cause any modified files to carry prominent notices+ stating that You changed the files; and++ (c) You must retain, in the Source form of any Derivative Works+ that You distribute, all copyright, patent, trademark, and+ attribution notices from the Source form of the Work,+ excluding those notices that do not pertain to any part of+ the Derivative Works; and++ (d) If the Work includes a "NOTICE" text file as part of its+ distribution, then any Derivative Works that You distribute must+ include a readable copy of the attribution notices contained+ within such NOTICE file, excluding those notices that do not+ pertain to any part of the Derivative Works, in at least one+ of the following places: within a NOTICE text file distributed+ as part of the Derivative Works; within the Source form or+ documentation, if provided along with the Derivative Works; or,+ within a display generated by the Derivative Works, if and+ wherever such third-party notices normally appear. The contents+ of the NOTICE file are for informational purposes only and+ do not modify the License. You may add Your own attribution+ notices within Derivative Works that You distribute, alongside+ or as an addendum to the NOTICE text from the Work, provided+ that such additional attribution notices cannot be construed+ as modifying the License.++ You may add Your own copyright statement to Your modifications and+ may provide additional or different license terms and conditions+ for use, reproduction, or distribution of Your modifications, or+ for any such Derivative Works as a whole, provided Your use,+ reproduction, and distribution of the Work otherwise complies with+ the conditions stated in this License.++ 5. Submission of Contributions. Unless You explicitly state otherwise,+ any Contribution intentionally submitted for inclusion in the Work+ by You to the Licensor shall be under the terms and conditions of+ this License, without any additional terms or conditions.+ Notwithstanding the above, nothing herein shall supersede or modify+ the terms of any separate license agreement you may have executed+ with Licensor regarding such Contributions.++ 6. Trademarks. This License does not grant permission to use the trade+ names, trademarks, service marks, or product names of the Licensor,+ except as required for reasonable and customary use in describing the+ origin of the Work and reproducing the content of the NOTICE file.++ 7. Disclaimer of Warranty. Unless required by applicable law or+ agreed to in writing, Licensor provides the Work (and each+ Contributor provides its Contributions) on an "AS IS" BASIS,+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or+ implied, including, without limitation, any warranties or conditions+ of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A+ PARTICULAR PURPOSE. You are solely responsible for determining the+ appropriateness of using or redistributing the Work and assume any+ risks associated with Your exercise of permissions under this License.++ 8. Limitation of Liability. In no event and under no legal theory,+ whether in tort (including negligence), contract, or otherwise,+ unless required by applicable law (such as deliberate and grossly+ negligent acts) or agreed to in writing, shall any Contributor be+ liable to You for damages, including any direct, indirect, special,+ incidental, or consequential damages of any character arising as a+ result of this License or out of the use or inability to use the+ Work (including but not limited to damages for loss of goodwill,+ work stoppage, computer failure or malfunction, or any and all+ other commercial damages or losses), even if such Contributor+ has been advised of the possibility of such damages.++ 9. Accepting Warranty or Additional Liability. While redistributing+ the Work or Derivative Works thereof, You may choose to offer,+ and charge a fee for, acceptance of support, warranty, indemnity,+ or other liability obligations and/or rights consistent with this+ License. However, in accepting such obligations, You may act only+ on Your own behalf and on Your sole responsibility, not on behalf+ of any other Contributor, and only if You agree to indemnify,+ defend, and hold each Contributor harmless for any liability+ incurred by, or claims asserted against, such Contributor by reason+ of your accepting any such warranty or additional liability.++ END OF TERMS AND CONDITIONS++ APPENDIX: How to apply the Apache License to your work.++ To apply the Apache License to your work, attach the following+ boilerplate notice, with the fields enclosed by brackets "[]"+ replaced with your own identifying information. (Don't include+ the brackets!) The text should be enclosed in the appropriate+ comment syntax for the file format. We also recommend that a+ file or class name and description of purpose be included on the+ same "printed page" as the copyright notice for easier+ identification within third-party archives.++ Copyright [yyyy] [name of copyright owner]++ Licensed under the Apache License, Version 2.0 (the "License");+ you may not use this file except in compliance with the License.+ You may obtain a copy of the License at++ http://www.apache.org/licenses/LICENSE-2.0++ Unless required by applicable law or agreed to in writing, software+ distributed under the License is distributed on an "AS IS" BASIS,+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.+ See the License for the specific language governing permissions and+ limitations under the License.
+ Setup.hs view
@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain
+ prometheus-metrics-ghc.cabal view
@@ -0,0 +1,41 @@+name: prometheus-metrics-ghc+version: 0.1.0.0+synopsis:+ Metrics exposing GHC runtime information for use with prometheus-client.+description:+ Metrics exposing GHC runtime information for use with prometheus-client.+homepage: https://github.com/fimad/prometheus-haskell+license: Apache-2.0+license-file: LICENSE+author: Will Coster+maintainer: willcoster@gmail.com+copyright: 2015 Will Coster+category: Network+build-type: Simple+cabal-version: >=1.10++source-repository head+ type: git+ location: https://github.com/fimad/prometheus-haskell++library+ hs-source-dirs: src/+ default-language: Haskell2010+ exposed-modules:+ Prometheus.Metric.GHC+ build-depends:+ base >=4.6 && <4.8+ , prometheus-client+ , utf8-string >=0.3+ ghc-options: -Wall++test-suite doctest+ type: exitcode-stdio-1.0+ default-language: Haskell2010+ hs-source-dirs: tests+ ghc-options: -Wall+ main-is: doctest.hs+ build-depends:+ base+ , doctest+ , prometheus-client
+ src/Prometheus/Metric/GHC.hs view
@@ -0,0 +1,124 @@+-- | This module defines a metrics that exposes statistics from the GHC runtime+-- system ("GHC.Conc", "GHC.Stats").+--+-- To use these metrics, the monitored executable should run with the `+RTS -T`+-- command line flags and the following must be added somewhere near the+-- beginning of the main method:+--+-- >>> register ghcMetrics+module Prometheus.Metric.GHC (+ GHCMetrics+, ghcMetrics+) where++import Control.Applicative ((<$>))+import GHC.Conc (numSparks, getNumCapabilities)+import GHC.Stats+import Prometheus+import qualified Data.ByteString.UTF8 as BS+++newtype GHCMetrics = GHCMetrics ()++ghcMetrics :: Metric GHCMetrics+ghcMetrics = Metric {+ handle = GHCMetrics ()+ , collect = concat <$> sequence ghcCollectors+ }++ghcCollectors :: [IO [SampleGroup]]+ghcCollectors = [+ showCollector+ "ghc_sparks"+ "The number of sparks in the local spark pool."+ numSparks+ , showCollector+ "ghc_capabilities"+ "The number of threads that can run truly simultaneously."+ getNumCapabilities+ , statsCollector+ "ghc_bytes_allocated"+ "Total number of bytes allocated."+ bytesAllocated+ , statsCollector+ "ghc_num_gcs"+ "The number of garbage collections performed."+ numGcs+ , statsCollector+ "ghc_max_bytes_used"+ "The maximum number of live bytes seen so far."+ maxBytesUsed+ , statsCollector+ "ghc_cumulative_bytes_used"+ "The cumulative total bytes used."+ cumulativeBytesUsed+ , statsCollector+ "ghc_bytes_copied"+ "The number of bytes copied during garbage collection."+ bytesCopied+ , statsCollector+ "ghc_current_bytes_used"+ "The number of current live bytes."+ currentBytesUsed+ , statsCollector+ "ghc_current_bytes_slop"+ "The current number of bytes lost to slop."+ currentBytesSlop+ , statsCollector+ "ghc_max_bytes_slop"+ "The maximum number of bytes lost to slop so far."+ maxBytesSlop+ , statsCollector+ "ghc_peak_megabytes_allocated"+ "The maximum number of megabytes allocated."+ peakMegabytesAllocated+ , statsCollector+ "ghc_mutator_cpu_seconds"+ "The CPU time spent running mutator threads."+ mutatorCpuSeconds+ , statsCollector+ "ghc_mutator_wall_seconds"+ "The wall clock time spent running mutator threads."+ mutatorCpuSeconds+ , statsCollector+ "ghc_gc_cpu_seconds"+ "The CPU time spent running GC."+ gcCpuSeconds+ , statsCollector+ "ghc_gc_wall_seconds"+ "The wall clock time spent running GC."+ gcWallSeconds+ , statsCollector+ "ghc_cpu_seconds"+ "Total CPU time elapsed since program start."+ cpuSeconds+ , statsCollector+ "ghc_wall_seconds"+ "Total wall clock time elapsed since start."+ wallSeconds+ , statsCollector+ "ghc_parallel_total_bytes_copied"+ ("Number of bytes copied during GC, minus space held by mutable "+ ++ "lists held by the capabilities.")+ parTotBytesCopied+ , statsCollector+ "ghc_parallel_max_bytes_copied"+ ("Sum of number of bytes copied each GC by the most active GC "+ ++ "thread each GC.")+ parMaxBytesCopied+ ]++statsCollector :: Show a+ => String -> String -> (GCStats -> a) -> IO [SampleGroup]+statsCollector name help stat = do+ statsEnabled <- getGCStatsEnabled+ if statsEnabled+ then showCollector name help (stat <$> getGCStats)+ else return []++showCollector :: Show a => String -> String -> IO a -> IO [SampleGroup]+showCollector name help ioInt = do+ value <- ioInt+ let info = Info name help+ let valueBS = BS.fromString $ show value+ return [SampleGroup info GaugeType [Sample name [] valueBS]]
+ tests/doctest.hs view
@@ -0,0 +1,9 @@+module Main where++import Test.DocTest++main :: IO ()+main = doctest [+ "-isrc"+ , "Prometheus.Metric.GHC"+ ]