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
DRDO Chief Dr. Samir V Kamat has inaugurated a Compo-Rheo Die Casting (CRDC) facility at IISc-Bengaluru Campus for producing high-performance alloys.
CRDC is an advanced hybrid metallurgical process that combines elements of Composite material fabrication & Rheocasting to produce high-performance metal matrix composites.
#aatmarnirbharbharat
Mishra Dhatu Nigam Limited (MIDHANI) has inaugurated a state-of-the-art Aerospace Fasteners Facility in Hyderabad, marking its transition into a fully integrated manufacturer of high-precision components for extreme environments, including titanium and superalloy fasteners. By maintaining 100% in-house production and hosting resident inspection agencies, the facility ensures stringent quality control and compliance for the defense and aerospace sectors.
Source
#aatmarnirbharbharat#defence
DRDO Chairman Dr Samir V Kamat said the Ghatak UCAV will be comparable to a stealth fighter in capability. "They will be like fighters, they would be a stealth fighter... about a 13-ton class... LCA type fighter aircraft," Kamat said, adding that a recent proposal cleared by the Defence Procurement Board envisages induction of around 67 such systems. #Defence#aatmarnirbharbharat
BDL achieved a major milestone in indigenous defence manufacturing with the delivery of India’s first Production-Grade Wire Guided Heavy Weight Torpedo to NSTL at Visakhapatnam. #Defence#aatmarnirbharbharat
Vadodara-based INOX India has flagged-off the 'simulated Liquid Oxygen (LOX) Storage Module' to DRDO (NMRL) for India’s first indigenous AIP System. #Defence#aatmarnirbharbharat
Hyderabad-based ZenT echnologies has received a licence to manufacture 12.7mm, 23mm, 30mm & 40mm air defence guns to defend from low flying targets. #Defence#aatmarnirbharbharat
HAL has inaugurated a LCH Prachand (156 on order) Structure Assembly Line and an Automated Storage & Retrieval System (ASRS) at Tumakuru (Karnataka) today. #Defence#aatmarnirbharbharat
Union Cabinet approves Bharat Maritime Insurance pool (BMI pool) with a sovereign guarantee of Rs 12,980 crore to facilitate continuous maritime insurance coverages: I&B Minister Ashvini Vaishnav
This will reduce dependence on foreign insurance providers for maritime transport #Policy#aatmarnirbharbharat
Atomberg Tech introduces 1st Generation Drone Propulsion Systems.
An excellent step towards becoming 'Atmanirbhar' in #drones. Presently most of these propulsion systems are imported. #aatmarnirbharbharat
Delhi-based dpropulse is building India's first rotating detonation engine (RDE).
#Aviation#aatmarnirbharbharat
https://fxtwitter.com/i/status/2044030717123014797