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
#Tourist
The Great Wall of China :
is a huge chain of defensive fortifications stretching across northern China, it is a symbol of China and one of the Seven Wonders of the new world, known for its enormous length exceeding 21 thousand kilometers, it was built over centuries, especially during the Ming dynasty, it features watchtowers and strategic corridors, it is a UNESCO World Heritage Site and an outstanding world tourist destination.
📝
Construction history:
the first construction work began more than 2000 years ago, during the spring and autumn reign and the Warring States, and it was significantly expanded and renovated by later dynasties, especially the Ming Dynasty (1369-1644).
#Nature
#Tourist
Socotra:
is a Yemeni archipelago belonging to the Hadramaut region consisting of six islands on the Indian Ocean off the coast of the Horn of Africa near the Gulf of Aden, located about 240 kilometers (150 Mi) east of the coast of Somalia and 380 kilometers (240 Mi) south of the Arabian Peninsula.
The island was classified as a World Heritage Site in 2008, and the New York Times ranked it as the most beautiful island in the world in 2010 due to the unique biodiversity and environmental importance of this island and its reflection on the world. In October of 2013, the Socotra archipelago governorate became an independent governorate from Hadramaut governorate.
#History
#Tourist
The Great Sphinx:
is a huge stone sculpture carved from limestone, embodying a mythical creature with a human head and the body of a lion in a reclining position.
Facing directly from West to East, the statue is located on the Giza plateau on the West Bank of the Nile in Giza, Egypt.
It is believed that the facial features of the statue belong to Pharaoh Khafre.
The original figure of the Sphinx was carved from the Adim Rock, later it was restored with limestone layers. The statue is 73 M (240 ft) long from claw to tail, 20 M (66 ft) high from the base to the top of the head, and 19 m (62 ft) wide at its hind feet