jvc 830

Jar question: We all know that ESXi 5 supports using SSD disk as host cache, and today I have a simple experiment, I use a Samsung 830 SSD disk, I found that can identify the drive type of SSD. and the SSD host cache has been successfully enabled with this disk. My understanding is that when the host memory is not enough, the need to use the VM swap files, the SSD host cache will be used first, when the SSD host cache space is not enough to use the vi

that can achieve the best performance depends on your use environment. As a result of the wireless network can not achieve the best performance of the signal coverage problems are mainly the following points: Distance, transmission distance is the wireless signal in the transmission of signal failure irresistible factor. Although many wireless products in the nominal transmission distance are said to be able to transmit the farthest indoor 100 meters, outdoors the farthest 300 meters; some pro

1. Test mix, achievement unification--the old method encounters new problems On the use of Excel for student performance processing, is already the old topic. But there are still many new problems in the actual work, for example, now many schools are the whole grade class mixed together the examination, in order to prevent the examination to change the improper competition in the volume. and statistical results, is the assignment but unopened examination papers to the academic office, first acc

Today I do not know why, start Eclipse, start half automatically shut down, start failure. The specific picture is as follows: 1. Start the interface But in half, it disappears automatically. The day after tomorrow prompts the following questions: Java.lang.NullPointerExceptionAt Org.eclipse.core.internal.runtime.InternalPlatform.getLog (internalplatform.java:354)At Org.eclipse.core.runtime.Plugin.getLog (plugin.java:291)At Org.eclipse.ui.internal.WorkbenchPlugin.log (workbenchplugin.java:

about the amount of memory that the current system is using and available. The next step is to use the FREE-M command to see the memory usage (in megabytes) and then filter out the remaining amount of storage by using the grep Mem: command.Use the awk ' {print $4} ' command to keep only the fourth column, and finally assign the result of execution in the statement to the variable in the form of freemem= ' statement '[Email protected] ~]# Free-m Total used Freeshared buffers Cachedmem:1826

/usr/lib/systemd/systemd? Root 2 0 0 January 22? 00:00:00 [Kthreadd]? Root 3 2 0 January 22? 00:00:06 [ksoftirqd/0]? (5) Custom display fields? Custom display Fields--------------------------------? [[Email protected] ~]# PS Axo user,pid,ppid,%mem,command//XO specified column display? [[Email protected] ~]# PS Axo user,pid,ppid,%mem,command |grep httpd? Root 8310 1 0.1/usr/sbin/httpd? Apache 8311 8310 0.0/usr/sbin/httpd? Apache 8312 8310 0.0/usr/sbin/httpd? Apache 8313 8310 0.0/usr/sbin/httpd? A