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
72 Hours. No trace!
#Million_Beyene has now been missing for 72 hours.
Disappeared without a trace.
He was forcibly taken from his workplace at Addis Standard newsroom, where he had continued to stand his ground and carry out his duties despite mounting pressure to walk away.
Seventy-two hours on, silence persists.
Despite repeated inquiries and appeals, no authority has provided any information about his whereabouts or condition.
#WhereIsMillion#BringMillionHome#JournalismIsNotACrime#EndEnforcedDisappearances
Vanished without a trace!
Six days after he was forcibly taken from the Addis Standard newsroom by a group of masked men, the whereabouts and conditions of journalist Million Beyene remain unknown.
Million belongs at home with his family.
#WhereIsMillion? #BringMillionHome#JournalismIsNotACrime#PressFreedom#EndEnforcedDisappearances
Five days without a trace!
It has now been five days since #Million_Beyene was taken from his work place at Addis Standard newsroom and disappeared without a trace.
Ethiopia grappling with multiple threats, a dedicated journalist who has steadfastly upheld his duty to serve the public’s right to information is one of them.
#WhereIsMillion? #BringMillionHome#JournalismIsNotACrime#PressFreedom#EndEnforcedDisappearances
96 Hours. Still Missing!
Ninety-six hours after he was taken, the whereabouts of #Million_Beyene remain unknown.
Million was forcibly removed from his workplace, where he served as a journalist, working to uphold the public’s right to access the truth. In doing so, he has now been stripped of his own freedom.
The silence is alarming.
#WhereIsMillion#BringMillionHome#JournalismIsNotACrime#PressFreedom#EndEnforcedDisappearances
#Notice: 48 hours since our colleague Million Beyene disappeared without a trace.
Addis Abeba - Forty-eight hours after he was taken, the whereabouts of #Million_Beyene, Managing Editor of Addis Standard, remain unknown.
The #newsroom has learned that his phone was briefly active at around 10:00 p.m. last night before going silent again, raising further concern about his safety and condition.
His family and colleagues are enduring growing distress.
JAKENN Publishing PLC renews its urgent call for his safe and immediate return, and urges the relevant authorities, including the Addis Ababa Police and the Federal Police Commission, to act without delay to establish his whereabouts.
We also call on the Ethiopian Human Rights Commission (#EHRC) to investigate this apparent enforced disappearance and ensure accountability.
#WhereIsMillion
#JournalismIsNotACrime
#PressFreedom
#BringMillionHome