Eu comprei recentemente uma unidade SSD de 120GB e queria ajustar meu sistema operacional para ela.
Eu encontrei alguns tutorial para fazer isso e eu segui, mas encontrei alguns problemas.
Eu queria alterar o valor de vm.dirty_ratio para 60, então adicionei esta linha: vm.dirty_ratio = 60 no final do meu /etc/sysctl.conf . Então eu reiniciei meu computador para aplicar alterações.
Agora, quando eu uso sysctl vm.dirty_ratio , ele retorna 10, mas acho que com vm.dirty_background_ratio funcionou.
O que devo fazer para defini-lo, ou talvez eu esteja tentando ler de maneira errada?
Obrigado pela ajuda!
- EDIT--
/etc/sysctl.conf:
#
# /etc/sysctl.conf - Configuration file for setting system variables
# See /etc/sysctl.d/ for additional system variables.
# See sysctl.conf (5) for information.
#
#kernel.domainname = example.com
# Uncomment the following to stop low-level messages on console
#kernel.printk = 3 4 1 3
##############################################################3
# Functions previously found in netbase
#
# Uncomment the next two lines to enable Spoof protection (reverse-path filter)
# Turn on Source Address Verification in all interfaces to
# prevent some spoofing attacks
#net.ipv4.conf.default.rp_filter=1
#net.ipv4.conf.all.rp_filter=1
# Uncomment the next line to enable TCP/IP SYN cookies
# See http://lwn.net/Articles/277146/
# Note: This may impact IPv6 TCP sessions too
#net.ipv4.tcp_syncookies=1
# Uncomment the next line to enable packet forwarding for IPv4
#net.ipv4.ip_forward=1
# Uncomment the next line to enable packet forwarding for IPv6
# Enabling this option disables Stateless Address Autoconfiguration
# based on Router Advertisements for this host
#net.ipv6.conf.all.forwarding=1
###################################################################
# Additional settings - these settings can improve the network
# security of the host and prevent against some network attacks
# including spoofing attacks and man in the middle attacks through
# redirection. Some network environments, however, require that these
# settings are disabled so review and enable them as needed.
#
# Do not accept ICMP redirects (prevent MITM attacks)
#net.ipv4.conf.all.accept_redirects = 0
#net.ipv6.conf.all.accept_redirects = 0
# _or_
# Accept ICMP redirects only for gateways listed in our default
# gateway list (enabled by default)
# net.ipv4.conf.all.secure_redirects = 1
#
# Do not send ICMP redirects (we are not a router)
#net.ipv4.conf.all.send_redirects = 0
#
# Do not accept IP source route packets (we are not a router)
#net.ipv4.conf.all.accept_source_route = 0
#net.ipv6.conf.all.accept_source_route = 0
#
# Log Martian Packets
#net.ipv4.conf.all.log_martians = 1
#
#My SSD tweaks
vm.swappiness = 5
vm.dirty_background_ratio = 5
vm.dirty_ratio = 60
Saída de sudo free --human , porque não posso postar no comentário:
total used free shared buffers cached
Mem: 3,8G 3,4G 473M 102M 65M 935M
-/+ buffers/cache: 2,4G 1,4G
Swap: 3,9G 280K 3,9G