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
Meningitis can affect anyone at any age.
Seek medical attention immediately if you experience symptoms.
Symptoms include
➡️Fever/severe headache
➡️Vomiting
➡️Drowsiness
➡️Rash
➡️Seizures
➡️Muscle/joint pain
➡️Stiff neck
#DefeatMeningitis
#Meningitis can affect any age group but mostly occurs in children and young adults.
Visit a healthcare centre for immediate medical attention if you notice any of these symptoms in your young ones.
Let’s #DefeatMeningitis together.
#Meningitis spreads mostly from one person to another through respiratory droplets e.g. coughing, sneezing & close contact such as kissing
Seek immediate medical attention if you experience these symptoms
Let’s #DefeatMeningitis together.
#Meningitis spreads mostly from one person to another through respiratory droplets e.g. coughing, sneezing & close contact such as kissing
Meningitis can affect anyone at any age. Seek medical attention if you experience symptoms.
Let's take action to #DefeatMeningitis together.
#Meningitis spreads mostly from one person to another through respiratory droplets e.g. coughing, sneezing & close contact such as kissing
Meningitis can affect anyone at any age. Seek medical attention if you experience symptoms
Let's take action to #DefeatMeningitis together
#Meningitis is an inflammation of the membranes around the spinal cord & brain.
Seek medical attention when you experience signs & symptoms such as:
➡️Fever/severe headache
➡️Vomiting
➡️Drowsiness
➡️Rash
➡️Seizures
➡️Muscle/joint pain
➡️Stiff neck
#DefeatMeningitis
#Meningitis is a medical emergency that can be deadly & can cause long-lasting impacts such as brain damage, hearing loss, organ damage & limb loss.
Early recognition saves lives. Seek immediate medical attention if you experience associated symptoms.
#DefeatMeningitis
📌Meningitis is a vaccine-preventable disease but can progress rapidly and become life-threatening if not vaccinated early.
The best way to protect yourself and your loved ones is:
✅Early vaccination
✅Recognizing the signs early
✅Seek immediate medical care
✅Follow prevention measures.
Together, we can defeat meningitis💪
#DefeatMeningitis#StaySafe#NCDCNigeria
Across the world, meningitis kills 1 in 10 people & causes lifelong disability in 1 in 5 people who survive it.
This #WorldMeningitisDay aims to remind us to raise awareness of #meningitis, its signs & symptoms, available vaccines and the race we must make to #DefeatMeningitis
Vaccination is the best prevention measure against #CerebrospinalMeningitis.
Ensure you complete Nigeria's routine immunisation schedule for your children or wards to keep them safe and #healthy.
#DefeatMeningitis
Vaccination is the best prevention measure against #CerebrospinalMeningitis.
Ensure you complete Nigeria's routine immunisation schedule for your children or wards to keep them #safe from vaccine-preventable diseases.
#DefeatMeningitis
#WorldMeningitisDay