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has some capabilities [3] that sar does not have. A collection of supporting tools [4] can also help collectl gather and post-process data.
Collectl is easy to install if Perl is already installed
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and documentation on the topic of server performance monitoring. If you manage a complex structure, it's good idea to read the guides on this site. To run the tool, you also need Log Parser 2.2 [2], which is also
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/**
16 * @param args
17 */
18 public static void main(String[] args) throws Exception {
19
20 if (args.length != 3 && args.length != 5)
21 {
22 System
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; whereas KVM [3] supports genuine hardware virtualization in combination with the right CPU. Both virtualization technologies support maximum performance for the guest system in line with the current state
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.33
164.69
0.75
rand_mat_stat
3.37
39.34
11.64
54.54
22.07
8.12
rand_mat_mul
1.00
1.18
0.70
1.65
8
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cluster nodes, and the ext3 driver on node A wouldn't have the option of querying the state of the same DRBD resources on node B if it wanted to write to the medium.
In the worst case, a write to the DRBD
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also frequently provides the underpinnings for a virtualization cluster that runs multiple guests in a high-availability environment, thanks to Open Source tools such as Heartbeat [2] and Pacemaker [3
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to install RADOS and Ceph. Ceph, which is a plain vanilla filesystem driver on Linux systems (e.g., ext3 or ext4), made its way into the Linux kernel in Linux 2.6.34 and is thus available for any distribution
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, POP3, or DNS. Thanks to its integrated SNMP trap and Syslog receiver, OpenNMS is capable of implementing centralized logging. Performance data can be collected via SNMP, WMI, HTTP, JMX, JDBC
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version with advanced capabilities is available for EUR 49. A feature list [3] specifies the differences between the free and pro versions.
The terminal function supports anti-aliasing, fonts, and macros
