#locust

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HabrКак мы ускорили ванильную FreeIPA в 20 раз!!! (почти)В статье речь пойдет об ALD Pro (Astra Linux Domain Pro). Один заказчик попросил предоставить инструмент нагрузки LDAP-запросов, да не простой, а с GUI и графиками. Наша команда в своей работе активно использует open source инструмент нагрузочного тестирования Locust (англ. Саранча). Сам по себе Locust является ядром нагрузки с минимальным функционалом из коробки, но этот функционал расширяется за счет использования Locustfiles, которые пишутся на чистом Python, что позволяет не ограничиваться набором инструкций, как, например, в Dockerfile/Containerfile/Vagrantfile, а писать отдельные Python-модули. На создании инструмента нагрузки ничего не закончилось, а все только началось. Мы нагрузили ALD Pro, получили графики и...обнаружили катастрофу.<a href="https://habr.com/ru/companies/astralinux/articles/891064/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://habr.com/ru/companies/astralinux/articles/891064/</a><a href="https://zhub.link/tags/%D0%93%D1%80%D1%83%D0%BF%D0%BF%D0%B0_%D0%90%D1%81%D1%82%D1%80%D0%B0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Группа_Астра</a> <a href="https://zhub.link/tags/ald_pro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ald_pro</a> <a href="https://zhub.link/tags/locust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#locust</a> <a href="https://zhub.link/tags/ldap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ldap</a> <a href="https://zhub.link/tags/opensource" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#opensource</a> <a href="https://zhub.link/tags/astralinux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#astralinux</a> <a href="https://zhub.link/tags/%D0%B2%D0%BD%D0%B5%D0%B4%D1%80%D0%B5%D0%BD%D0%B8%D0%B5" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#внедрение</a> <a href="https://zhub.link/tags/freeipa" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#freeipa</a> <a href="https://zhub.link/tags/rust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#rust</a> <a href="https://zhub.link/tags/%D1%84%D1%81%D1%82%D1%8D%D0%BA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#фстэк</a>

William McAuslandBestial Human Grasshopper Hand drawn Ink art by William McAusland, writing by Colin ChapmanThe bestial human grasshopper is herbivorous and relatively inoffensive, but is still regarded with distrust by humans due to the tendency of these mutants to sometimes enter frenzied feeding phases as a locust, devouring vast quantities of valuable foodstuffs. They are only permitted entry to human communities if accompanied by trusted humans or mutant humans, and even then they will be instructed to keep away from human food supplies and crops on pain of death. <a href="https://www.outlandarts.com/expansionrules.htm" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.outlandarts.com/expansionrules.htm</a> <a href="https://www.drivethrurpg.com/en/product/499645/the-mutant-epoch-rpg-expansion-rules" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.drivethrurpg.com/en/product/499645/the-mutant-epoch-rpg-expansion-rules</a> <a href="https://www.amazon.com/dp/0994923791" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.amazon.com/dp/0994923791</a><a href="https://mstdn.games/tags/grasshopper" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#grasshopper</a> <a href="https://mstdn.games/tags/bug" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bug</a> <a href="https://mstdn.games/tags/bugman" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bugman</a> <a href="https://mstdn.games/tags/hopper" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#hopper</a> <a href="https://mstdn.games/tags/locust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#locust</a> <a href="https://mstdn.games/tags/beast" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#beast</a> <a href="https://mstdn.games/tags/bestial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bestial</a> <a href="https://mstdn.games/tags/manimal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#manimal</a> <a href="https://mstdn.games/tags/RPG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#RPG</a> <a href="https://mstdn.games/tags/ttrpg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ttrpg</a> <a href="https://mstdn.games/tags/bestialhuman" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#bestialhuman</a> <a href="https://mstdn.games/tags/characters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#characters</a> <a href="https://mstdn.games/tags/noaiart" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#noaiart</a> <a href="https://mstdn.games/tags/williammcausland" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#williammcausland</a> <a href="https://mstdn.games/tags/wasteland" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#wasteland</a> <a href="https://mstdn.games/tags/mutantepoch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mutantepoch</a> <a href="https://mstdn.games/tags/apocalyptic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#apocalyptic</a> <a href="https://mstdn.games/tags/expansionrules" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#expansionrules</a> <a href="https://mstdn.games/tags/postapocalyptic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#postapocalyptic</a> <a href="https://mstdn.games/tags/themutantepoch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#themutantepoch</a> <a href="https://mstdn.games/tags/outlandsystem" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#outlandsystem</a> <a href="https://mstdn.games/tags/outlandarts" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#outlandarts</a> <a href="https://mstdn.games/tags/mutants" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mutants</a> <a href="https://mstdn.games/tags/mutant" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mutant</a> <a href="https://mstdn.games/tags/epoch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#epoch</a> <a href="https://mstdn.games/tags/inkartist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#inkartist</a> <a href="https://mstdn.games/tags/Kamloopsartist" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Kamloopsartist</a> <a href="https://mstdn.games/tags/apocalyptic" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#apocalyptic</a> <a href="https://mstdn.games/tags/fallout" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fallout</a> like <a href="https://mstdn.games/tags/gammaworld" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#gammaworld</a>  <a href="https://mstdn.games/tags/humanoidanimal" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#humanoidanimal</a> <a href="https://mstdn.games/tags/roleplayinggame" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#roleplayinggame</a> <a href="https://mstdn.games/tags/indiegame" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#indiegame</a>

HabrПравильный инструмент для аналитики нагрузочного тестирования. Часть 2Load-testing-hub : эволюция сервиса аналитики нагрузочного тестирования Ранее я рассказывал о load-testing-hub , инструменте для аналитики и агрегации данных по нагрузочным тестам. Тогда он находился в стадии MVP , а теперь прошел значительные улучшения. Что изменилось? — Добавлено больше информации и гибкости в настройках. — Расширены возможности сравнения результатов. — Реализованы детальные графики и аналитика по методам. — Оптимизирован процесс выявления аномалий в производительности сервисов. Один из практических кейсов — поиск по банковским операциям среди сотен миллионов записей. Load-testing-hub помог протестировать производительность, выявить узкие места и оптимизировать решение. Изменений настолько много, что проще рассказать о сервисе заново. В статье подробно разберу его новые возможности и кейсы использования.<a href="https://habr.com/ru/articles/871154/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://habr.com/ru/articles/871154/</a><a href="https://zhub.link/tags/%D0%BD%D0%B0%D0%B3%D1%80%D1%83%D0%B7%D0%BE%D1%87%D0%BD%D0%BE%D0%B5_%D1%82%D0%B5%D1%81%D1%82%D0%B8%D1%80%D0%BE%D0%B2%D0%B0%D0%BD%D0%B8%D0%B5" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#нагрузочное_тестирование</a> <a href="https://zhub.link/tags/%D0%BD%D0%B0%D0%B3%D1%80%D1%83%D0%B7%D0%BA%D0%B0_%D0%BD%D0%B0_%D1%81%D0%B5%D1%80%D0%B2%D0%B5%D1%80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#нагрузка_на_сервер</a> <a href="https://zhub.link/tags/python" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#python</a> <a href="https://zhub.link/tags/performance_tests" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#performance_tests</a> <a href="https://zhub.link/tags/performance_analysis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#performance_analysis</a> <a href="https://zhub.link/tags/reporting" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#reporting</a> <a href="https://zhub.link/tags/%D1%81%D0%B5%D1%80%D0%B2%D0%B8%D1%81_%D0%B4%D0%BB%D1%8F_%D0%B0%D0%BD%D0%B0%D0%BB%D0%B8%D1%82%D0%B8%D0%BA%D0%B8" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#сервис_для_аналитики</a> <a href="https://zhub.link/tags/locust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#locust</a> <a href="https://zhub.link/tags/load_testing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#load_testing</a> <a href="https://zhub.link/tags/metrics_server" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#metrics_server</a>

Albert CardonaBack in 1995, Wolf & Burrows published a report on presynaptic inhibition in a somatosensory neuron in locust, where the efference copy signal is mediated via, precisely, metabotropic GABA receptors:"Proprioceptive sensory neurons of a locust leg receive rhythmic presynpatic inhibition during walking", Wolf & Burrows 1995 <a href="https://www.jneurosci.org/content/15/8/5623.short" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://www.jneurosci.org/content/15/8/5623.short</a>This paper is remarkable, and memorable, in what it teaches us about axo-axonic synapses:1. A GABAergic neuron synapses onto the axon of an excitatory somatosensory neuron (a chordotonal proprioceptive neuron); 2. The somatosensory neuron receives the signal via GABA B receptors, which are metabotropic; 3. The effect on the receiving axon is a subthreshold depolarization (!); 4. The effect on the function of the receiving axon is inhibition after all.What happens is: a subthreshold depolarization is a reduction of the membrane voltage potential. When the action potential reaches the axon, the reduced voltage potential results in a smaller depolarization, so the somatosensory axon releases less neurotransmitter to its own postsynaptic partners.In summary: presynaptic inhibition (axo-axonic GABA synapses) does not participate of the integration function of the postsynaptic neuron – does not interfere with whether the neuron will spike or not.Instead, presynaptic inhibition, via metabotropic GABA receptors, is a form of modulation of the postsynaptic neuron: how strongly will it pass on the signal. And that is, precisely, what's needed to implement the efference copy.[Update: GABA B receptor is the metabotropic!]2/2<a href="https://mathstodon.xyz/tags/neuroscience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#neuroscience</a> <a href="https://mathstodon.xyz/tags/locust" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#locust</a>

Matt PotterThis locust is about the size of my iPhone, and is moving its head and front legs as if it’s trying to explain to me, an idiot, why it’s blocking the path for my own good.<a href="https://c.im/tags/locust" class="mention hashtag" rel="tag">#locust</a> <a href="https://c.im/tags/insect" class="mention hashtag" rel="tag">#insect</a> <a href="https://c.im/tags/insects" class="mention hashtag" rel="tag">#insects</a> <a href="https://c.im/tags/locusts" class="mention hashtag" rel="tag">#locusts</a> <a href="https://c.im/tags/entomology" class="mention hashtag" rel="tag">#entomology</a>

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