IBM REDP-4285-00 User Manual
4285ch02.fm
Draft Document for Review May 4, 2007 11:35 am
62
Linux Performance and Tuning Guidelines
bus
This subdirectory contains information about the bus subsystems such as the PCI bus or
the USB interface of the respective system.
the USB interface of the respective system.
irq
The irq subdirectory contains information about the interrupts in a system. Each
subdirectory in this directory refers to an interrupt and possibly to an attached device such
as a network interface card. In the irq subdirectory, you can change the CPU affinity of a
given interrupt (a feature we cover later in this book).
subdirectory in this directory refers to an interrupt and possibly to an attached device such
as a network interface card. In the irq subdirectory, you can change the CPU affinity of a
given interrupt (a feature we cover later in this book).
net
The net subdirectory contains a significant number of raw statistics regarding your network
interfaces, such as received multicast packets or the routes per interface.
interfaces, such as received multicast packets or the routes per interface.
scsi
This subdirectory contains information about the SCSI subsystem of the respective
system, such as attached devices or driver revision. The subdirectory ips refers to the IBM
ServeRAID controllers found on most IBM System x servers.
system, such as attached devices or driver revision. The subdirectory ips refers to the IBM
ServeRAID controllers found on most IBM System x servers.
sys
In the sys subdirectory you find the tunable kernel parameters such as the behavior of the
virtual memory manager or the network stack. We cover the various options and tunable
values in /proc/sys in 4.3, “Changing kernel parameters” on page 104.
virtual memory manager or the network stack. We cover the various options and tunable
values in /proc/sys in 4.3, “Changing kernel parameters” on page 104.
tty
The tty subdirectory contains information about the respective virtual terminals of the
systems and to what physical devices they are attached.
systems and to what physical devices they are attached.
2.3.17 KDE System Guard
KDE System Guard (KSysguard) is the KDE task manager and performance monitor. It
features a client/server architecture that enables monitoring of local and remote hosts.
features a client/server architecture that enables monitoring of local and remote hosts.