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
Business owners and facility managers should promote #HandHygiene at all times.
Provide adequate hand hygiene supplies such as running water, soap & hand sanitiser in all shared spaces.
Clean hands save lives
Improving the quality and safety of health care through informed #IPC practices such as #HandHygiene bolsters the feeling of protection by patients & healthcare workers.
Facility managers should ensure #handhygiene at every point of care is promoted at all times.
🧼 Keep Your Hands Clean, Stay Healthy! 👐🏽
Washing your hands at the right moments helps prevent the spread of germs and diseases. Don’t forget to wash your hands:
✅ After coughing/sneezing
✅ After touching high-contact surfaces
✅ Before touching a mask
✅ When entering/leaving public spaces
✅ Upon returning home
✅ While caring for the ill
Clean hands save lives! 🙌🏽#HandHygiene#StaySafe#NCDCNigeria
Every day, our hands come in contact with germs from surfaces, people, and objects around us.
Without proper hygiene, these germs easily enter the body and cause illness.
Washing your hands with soap under clean running water for at least 20 seconds especially before eating, after using the toilet, and after touching shared surfaces is one of the most effective ways to prevent infections.
✅Make handwashing a habit, protect yourself and those around you.
Clean hands today, healthier tomorrow.
#HealthTipMonday#HandHygiene#NCDCNigeria
Clean hands save lives.
Wash your hands regularly with soap under clean running water to protect yourself and others from infections. 🧼👐
#LassaFever#NCDCNigeria#HandHygiene#StaySafe
Preventing #LassaFever starts with simple habits!
Remember: 20 seconds of regular handwashing with soap and water can save lives🧼
Let's keep our hands clean and our loved ones safe.
#STOPLassaFever#HandHygiene
#HandHygiene with clean, running water is very vital to the prevention of #cholera.
Important #handwashing moments⬇️
✅While caring for the ill
✅After using the toilet
✅Before food preparation
✅Before and after eating
✅After touching high contact surfaces
#TakeResponsibility
#HandHygiene with soap under clean, running water is very vital to the prevention of #cholera.
Important #handwashing moments⬇️
✅While caring for the ill
✅After using the toilet
✅Before food preparation
✅Before and after eating
✅After touching high contact surfaces
#TakeResponsibility
#HandHygiene with clean, running water is very vital to the prevention of #cholera.
Important #handwashing moments⬇️
✅While caring for the ill
✅After using the toilet
✅Before food preparation
✅Before and after eating
✅After touching high contact surfaces
#TakeResponsibility
#FactFriday
Clean hands is one of the simplest and most effective ways to stay healthy and protect those around you from diseases👌
Washing your hands with soap under clean running water for just 20 seconds can reduce your risk of infection by up to 50%? 🙌🏽
Make handwashing a daily habit ✅️
#FactFriday#HandHygiene#HealthyLiving#NCDCNigeria
Viral Haemorrhagic Fevers such as #LassaFever spread mainly from person to person through direct & indirect contact.
When properly done, #HandHygiene is very important to reduce the risk of healthcare workers' infection.
Our #IPC guidelines for #VHFs⬇️
https://ncdc.gov.ng/themes/common/docs/protocols/111_1579986179.pdf