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Tracing applications with OProfile and SystemTap
30.11.2025
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© boing, Photocase.com
686 oprofile-0.9.5-4.fc12.i686 To profile the kernel, you need to tell OProfile where the kernel image is located with the --vmlinux option: opcontrol --setup --vmlinux=/usr/lib/debug/lib/ modules
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RAM revealed
30.11.2025
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© KrishnaKumar Sivaraman, 123RF.com
GKF8S 16 DDR3, Registered, ECC, 4 rank 8.710 0.54 AL24M72E4BKH9S 8 DDR3, Registered, ECC, 2 rank 6.132 0.77 AL12M72B8BKH9S
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Managing virtual machines
30.11.2025
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© Igor Klimov, 123RF.com
/sysconfig/network-scripts/ifcfg-eth0-e "s///" You need a similar approach with the Udev rules mentioned earlier. In this way, you can also replace the hostname so that it matches the name assigned during
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Touring the top Knoppix debugging and rescue tools
30.11.2025
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Rafal Olechowski, 123RF.com
: 1487680 0 IO-APIC-fasteoi uhci_hcd:usb3 14 22: 22998855 0 IO-APIC-fasteoi psb@pci:0000:00:02.0 15 23: 3084145 0 IO-APIC-fasteoi hda_intel 16 24: 1 0 ... 0
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Workshop: Container virtualization with LXC on Ubuntu 10.04
30.11.2025
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© Tormod Rossavik, 123RF.com
.network.type = veth 04 lxc.network.flags = up 05 lxc.network.link = br0 06 lxc.network.hwaddr = 08:00:12:34:56:78 07 #lxc.network.ipv4 = 0.0.0.0 08 lxc.network.ipv4 = 192.168.1.69 09 lxc.network.name = eth0 10 lxc
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I/O benchmarks with Fio
30.11.2025
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© Kheng Ho Toh, 123RF.com
/0K /s] [4137 /0 iops] [eta 00m:06s] In the example, the first job is performing a sequential read, marked as r in square brackets, while Fio hasn't initialized the second job, marked as P
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Debugging the Linux kernel with the Qemu emulator
30.11.2025
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© Daniela Mangiuca, 123RF.com
. The following command tells the system the hex address of the code segment and the two data segments: add-symbol-file path/hello.ko 0xd8817000 -s .data 0xd88170e0 -s .bss 0xd8817294 Now you can set a breakpoint
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Server virtualization with Citrix XenServer
30.11.2025
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Goss Vitalij, Fotolia
processor cores. Depending on the functional scope, the prices are between US$ 1,000 and US$ 5,000, including 12 months of free upgrades, news, and information. For server virtualization newcomers, Citrix
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A Btrfs field test and workshop
31.10.2025
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© Adrian Hillman, 123RF.com
, you can use the current package from Debian Sid [4], which is available there as version 0.19+20120328. After meeting these preconditions, you can start with a fresh Ubuntu 12.04 LTS server default
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Configuring the JBoss application server
30.11.2025
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HONGQI ZHANG, 123RF.com
procedure took (Listing 2). Listing 2 Startup Status 01 19:58:19,965 INFO [ServerImpl] JBoss (Microcontainer) [5.1.0.GA (build:SVNTag=JBoss_5_1_0_GA date=200905221634)] Started in 54s:991ms

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