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creates a 256MB file in the current directory along with process for the job. This process reads complete file content in random order. Fio records the areas that have already been read and reads each area
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notification_interval 60
16 notification_options d
17 }
18
19 # Fileserver
20 define host{
21 host_name fileserver
22 alias Fileserver
23
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on kernel 2.6.18, and what is known as the super stable version is based on 2.6.9. It looks like the OpenVZ developers can't keep pace with official kernel development. Various distributions have had an Open
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bandwidth measurements as follows:
Kilobytes are written as k or kb.
Megabytes are written as m or mb.
However, I'm more comfortable using kilobits and megabits. These terms are notated
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.
Additionally, Torvalds integrated kdb, a front end for kgdb, into the standard version 2.6.35 kernel to support simple operations, such as reading and setting memory addresses, reading kernel messages
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) with 12 Serial ATA disks, a 320 UW SCSI controller for the host connection, and 512MB cache.
I configured various disk groups and logical volumes on this powerful hardware and exported them to the backup
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of 1,000Hz. On each tick, the kernel wakes up the processor and checks for any work to do. This approach obviously limits power savings.
Starting with kernel 2.6.21, however, regular ticks are gone
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.0
2.2.x.
2.6.30 through 2.6.35
Debian 6 (Squeeze)
2.3.x.
2.6.36 through 3.0
Ubuntu 11.10
2.4.x.
3.1.
openSUSE 12.1
2.5.x.
3
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an official Linux kernel component in kernel version 2.6.20.
KVM Inside
As a kind of worst-case fallback, KVM can provide a slow but functional emulator for privileged functions, but it provides genuine
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. The target systems only require the systemtap-runtime RPM and the staprun program it contains. The following command creates a prebuilt binary kernel module for the target system:
stap -r kernel-PAE-2.6.31.12-174.2.22
