VirtualTam's bookmarks

21. Caches, Promises and Locks | Redis 2021-08-19

    tags: database/redis, memory/cache, programming/c#, programming/go, programming/python

    [ permalink ]

    • https://github.com/kristoff-it/redis-memolock
22. Thundering Herds & Promises 2021-08-19

    tags: distributed, memory/cache, performance, programming/c++

    [ permalink ]

    • https://engineering.fb.com/2015/06/19/developer-tools/futures-for-c-11-at-facebook/
    • https://github.com/facebook/folly/blob/master/folly/futures/SharedPromise.h
23. JVM G1GC Fundamentals: Lessons from Taming Garbage Collection 2020-03-16

    tags: jvm, memory/garbage-collection, openjdk, performance, programming/java

    [ permalink ]

    • https://www.oracle.com/technical-resources/articles/java/g1gc.html
    • https://wiki.openjdk.java.net/display/HotSpot/G1GC+Feedback
    • https://openjdk.java.net/jeps/248
24. MindForger - Thinking Notebook and Markdown Editor 2020-01-21

    tags: documentation, knowledge, programming/markdown

    [ permalink ]

    • https://github.com/dvorka/mindforger
    • https://github.com/dvorka/mindforger-repository/blob/master/memory/mindforger/why-mindforger.md
    • https://github.com/dvorka/mindforger-repository/blob/master/memory/mindforger/installation.md
    • https://github.com/dvorka/mindforger-repository/blob/master/memory/mindforger/user-documentation.md
25. The Mnemosyne Project - Optimized Flashcards and Research Project 2020-01-13

    tags: knowledge, memory, programming/html, programming/latex, question

    [ permalink ]

    • https://github.com/mnemosyne-proj/mnemosyne
    • https://groups.google.com/forum/#!forum/mnemosyne-proj-users
26. profefe: Continuously collect profiling data for long-term postmortem analysis 2020-01-10

    tags: memory, performance, performance/profiling, programming/go

    [ permalink ]

    • https://medium.com/@tvii/continuous-profiling-and-go-6c0ab4d2504b
    • https://gianarb.it/blog/go-continuous-profiling-profefe
    • https://jvns.ca/blog/2017/09/24/profiling-go-with-pprof/
    • https://rakyll.org/custom-profiles/
27. c++ - Performance of built-in types : char vs short vs int vs. float vs. double - Stack Overflow 2019-12-31

    tags: hardware/cpu, memory, performance, processor, programming/c, programming/c++

    [ permalink ]
28. 0.30000000000000004 2019-09-09

    tags: approximation, arithmetic, float, hardware/ram, memory, programming

    [ permalink ]

    • https://en.wikipedia.org/wiki/Floating-point_arithmetic
    • https://standards.ieee.org/standard/754-2008.html
    • https://stackoverflow.com/questions/588004/is-floating-point-math-broken/588014#588014
    • https://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
29. caching - Tomcat 8 throwing - org.apache.catalina.webresources.Cache.getResource Unable to add the resource 2019-04-12

    tags: continuous-integration/jenkins, memory, memory/cache, performance, programming/java, tomcat

    [ permalink ]

    • https://tomcat.apache.org/tomcat-8.0-doc/config/context.html
30. FlatBuffers - an efficient cross-platform serialization library 2019-03-28

    tags: buffer, data, frame, network, network/packet, performance, serialization

    [ permalink ]

    • https://github.com/google/flatbuffers
    • https://news.ycombinator.com/item?id=7901991
    • https://opensource.googleblog.com/2014/06/flatbuffers-memory-efficient.html
31. Reposurgeon - A tool for editing version-control repository history 2018-12-19

    tags: compiler/gcc, editor/emacs, history, linux, memory, programming/go, programming/python, repository, source-code-management, source-code-management/git

    [ permalink ]

    • http://esr.ibiblio.org/?tag=reposurgeon
    • http://esr.ibiblio.org/?p=8161
    • http://esr.ibiblio.org/?p=5634
    • http://esr.ibiblio.org/?p=7792
32. The Go Memory Model - The Go Programming Language 2018-12-11

    tags: concurrency/threading, memory, parallel, programming/go

    [ permalink ]
33. Transparent Hugepages: measuring the performance impact - The mole is digging 2018-11-15

    tags: linux, linux/kernel, memory, performance

    [ permalink ]

    • https://groups.google.com/forum/#!topic/mechanical-sympathy/sljzehnCNZU
    • https://www.kernel.org/doc/Documentation/vm/transhuge.txt
    • https://en.wikipedia.org/wiki/Page_table
34. 7.5. Configuring System Memory Capacity - Red Hat Customer Portal 2018-11-15

    tags: linux, linux/kernel, linux/red-hat, memory, performance

    [ permalink ]
35. Redis - FAQ - Background saving fails with a fork() error under Linux even if I have a lot of free RAM! 2018-10-29

    tags: database/redis, hardware/ram, linux/container/docker, memory

    [ permalink ]

    • https://github.com/docker-library/redis/issues/159
    • https://gist.github.com/kapkaev/4619127
    • https://stackoverflow.com/questions/19581059/misconf-redis-is-configured-to-save-rdb-snapshots
    • https://stackoverflow.com/questions/42502636/unable-to-save-in-background-redis-server
    • https://people.redhat.com/nhorman/papers/rhel4_vm.pdf
36. Trickster - Open Source Dashboard Accelerator for Prometheus 2018-09-24

    tags: dashboard, database, memory/cache, network/http, observability/time-series/prometheus, performance, web

    [ permalink ]
37. http - X-Cache Header Explanation - Stack Overflow 2018-08-31

    tags: header, memory/cache, network/http, performance, storage/cache

    [ permalink ]

    • https://anothersysadmin.wordpress.com/2008/04/22/x-cache-and-x-cache-lookup-headers-explained/
    • https://www.keycdn.com/blog/http-cache-headers/
    • https://web.archive.org/web/20101227032821/http://www.http-stats.com/X-Cache
    • https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching
    • https://www.w3.org/Protocols/rfc2616/rfc2616-sec13.html
38. https - How to run Gitlab in docker container with nginx-proxy over ssl with letsencrypt securely - Stack Overflow 2018-06-11

    tags: linux/container/docker, network/http, network/http-server/nginx, network/proxy, network/transport-layer-security, source-code-management/git, source-code-management/gitlab

    [ permalink ]

    Container setup:

    • https://gist.github.com/netdesk/c1db2985b542f9916995139318e5a7ce
    • https://hub.docker.com/r/jwilder/nginx-proxy/
    • https://hub.docker.com/r/jrcs/letsencrypt-nginx-proxy-companion/

    Gitlab settings:

    • https://docs.gitlab.com/omnibus/docker/
    • https://docs.gitlab.com/ce/administration/environment_variables.html
    • https://docs.gitlab.com/omnibus/settings/ssl.html
    • https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template

    Performance considerations:

    • https://docs.gitlab.com/omnibus/settings/memory_constrained_envs.html (skip the cgroups section for Gitaly as we are already running in a container)
    • https://docs.gitlab.com/ee/update/#gitaly-omnibus-gitlab-configuration-structure-change for Gitlab 16 changes to Gitaly configuration
39. Xdebug - Debugger and Profiler Tool for PHP 2018-05-10

    tags: development, memory, performance, performance/profiling, programming/php

    [ permalink ]

    • https://xdebug.org/docs/
    • https://xdebug.org/docs/profiler
    • https://stackoverflow.com/questions/21133/simplest-way-to-profile-a-php-script
    • http://nickology.com/2014/04/16/view-xdebug-cachegrind-files-on-mac-os/
    • https://stackoverflow.com/questions/33094913/how-do-i-read-the-ui-of-qcachegrind
    • https://github.com/jokkedk/webgrind
    • https://pecl.php.net/package/xhprof
    • https://tideways.com/profiler/xhprof-for-php7
    • https://github.com/humanmade/query-monitor-flamegraph
40. FlameScope: a visualization tool for exploring different time ranges as Flame Graphs. 2018-04-05

    tags: hardware/cpu, load, memory, observability/tracing, performance, stack, system

    [ permalink ]

    • https://medium.com/@NetflixTechBlog/netflix-flamescope-a57ca19d47bb
    • https://medium.com/netflix-techblog/java-in-flames-e763b3d32166