В Linux стандартными средствами можно использовать часть оперативной памяти как диск. Для этого требуется указать тип монтирования tmpfs в команде mount
mount -t tmpfs -o size=5G tmpfs /mnt/ram
Теперь путь /mnt/ram можно использовать как обычный каталог. Для чего это может быть нужно?
▫️ Скорость работы с таким каталогом выше чем многие SSD и тем более HDD.
▫️ Если у вас очень быстрый SSD на NVMe M.2 то такой способ особо не прибавит вам скорости, но поможет сохранить ресурс SSD когда требуется обрабатывать очень много мелких файлов и оперативка позволяет выделить нужный объем.
▫️ Оперативка это энергозависимая память, поэтому выключении питания все файлы безвозвратно теряются. Такой "non persistent" каталог гарантирует удаление временных файлов.
Я написал небольшой скрипт для условного теста и сравнения скорости копирования файлов между SSD и RAM.
Вот мои результаты:
Single File Size: 30.0Gb
ssd > ssd: 0:00:12.850 / 2.3Gb/s
sdd > ram: 0:00:06.453 / 4.6Gb/s
ram > ram: 0:00:06.995 / 4.3Gb/s
ram > sdd: 0:00:06.217 / 4.8Gb/s
Dir size: 32.7Gb, File count: 11127
ssd > ssd: 0:00:15.063 / 2.2Gb/s
sdd > ram: 0:00:08.486 / 3.9Gb/s
ram > ram: 0:00:08.032 / 4.1Gb/s
ram > sdd: 0:00:07.026 / 4.7Gb/s
Скрипт для теста ↗️
На моём железе прирост скорости ~2x. Плюс экономия ресурса SSD.
В Windows такой фишки по умолчанию нет, но обязательно найдутся аналогичные решения
#linux#triks
🎉The Sverdlovsk Regional Branch of the Russian Geographical Society (RGS) turns 79 today!
Founded on March 5, 1946, the Sverdlovsk RGS unites researchers, travelers, and geography enthusiasts.
Sergey Mazurkevich, a member of the Board of Trustees and Honorary Consul of South Africa, along with the staff of the Honorary Consul’s office, sincerely congratulate their colleagues on this special occasion!
📍 The headquarters of the Sverdlovsk RGS is located in Yekaterinburg at Ural State Pedagogical University (USPU).
🔗 The website: https://www.rgo.ru/ru/ekaterinburg
#RGS#Yekaterinburg#USPU#geography#Mazurkevich
🇷🇺🌊🌊🌊
🇮🇳 On September 2, Ratish Nair, Honorary Consul of Russia in Trivandrum (Karnataka, India), began a journey along the route of Afanasy Nikitin. The ambitious project is dedicated to the 555th anniversary of the famous "Journey Beyond Three Seas".
📍 The starting point of the journey was the embankment named after the famous Russian traveler Afansy Nikitin in Tver.
⚡️ Ratish Nair met Senator of the Federation Council of Russia from the Tver Region Lyudmila Skakovskaya and Rector of Tver State University Sergei Smirnov.
I am sure that this is a wonderful undertaking - repeating the route of the Tver merchant Afanasy Nikitin. This will help educational and outreach work, draw attention to the traveler's personality, and strengthen ties between our countries. I am sure that in our country, preserving and studying history is one of the most important areas of work,
the Senator emphasized.
Even in India, not everyone knows that Afanasy Nikitin is the first foreigner who came to our country for peaceful purposes. Friendly relations between India and Russia should be strengthened. This is the main goal of my trip. I am sure that the trip, repeating the path of the Russian traveler, will help to show Russia as it is and open it to foreigners without speculation and fakes,
said Ratish Nair.
🗣The meeting participants discussed the opening of Russian online educational courses in Russian in the Indian state of Karnataka, as well as other educational initiatives.
🗺 The head of the Russian House in Trivandrum will visit four more countries after Russia. His route, like 555 years ago, will lie from Tver to Astrakhan along the Volga river, then by car to Derbent, from there to
🇦🇿Azerbaijan, then to
🇮🇷 Iran, from there by plane to
🇴🇲 Oman, and then to
🇮🇳 India.
This project is organized by #Rossotrudnichestvo, the Russian Ministry of Foreign Affairs (#MFA), the #RusskiyMirFoundation, and the Russian Geographical Society (#RGS, #RGO), with #Rosatom and #Sber as partners.
#RussianHouse#RussianHouseTrivandrum#JourneyBeyondThreeSeas
#Voyage555