megabyte vs kilobytes

Specifies the file sizes, using K to specify the size of the kilobytes, and M to specify the megabyte size; The Autoextend clause is used to enable or disable automatic extension of the data file, set to on to automatically expand when the space is used, and set to off it is easy to have a table space remaining capacity of 0, so that data can not be stored in the database. Example: Creating an aut

back.At this point, CPU1 is forced to be placed in a wait state. The CPU1 waiting time ratio is%steal. (Personal understanding)Explanation of the format of the Device usage report:TPS: The number of transmissions sent to the device per second. The transmission here refers to an I/O request sent to the device.So, TPS means: the number of I/O requests sent to the device per second . A read request is called a i/0, and a write request is called an I/O.blk_read/s: number of blocks read from the dev

You may rarely face this situation, but once so, you must know what is wrong: insufficient memory or out-of-memory (OOM ). The result is very typical: you cannot reallocate the memory, and the kernel will kill a task (usually the one running ). Generally, with a large amount of read/write switching, you can see the screen and disk movements. The following is an implicit question: How much memory do you need to allocate? How much does the operating system allocate to you? The basic reason for OOM

kilobytes per second.kB_wrtn/s Indicate the amount of data written to the device expressed in kilobytes per second.kB_read The total number of kilobytes read.kB_wrtn The total number of kilobytes written.MB_read/s Indicate the amount of data read from the device expressed in megabytes per second.MB_wrtn/s

of the space that is used for persistent generations. Unit KB. -gc-gcold Ygc The number of times the generation of space GC time occurred. -gc-gccapacity-gcnew-gcnewcapacity-gcold-gcoldcapacity-gcpermcapacity-gcutil-gccause Ygct The time taken by the new generation of GC processing. -gc-gcnew-gcutil-gccause FGC The number of times the full GC occurred. -gc-gccapacity-gcnew-gcnewcapacity-gcold-gcoldcapacity-gcpermcapaci

Pu Outputs the size of the used space for durable generations. Unit KB. -gc-gcold Ygc The number of times the generation of space GC time occurred. -gc-gccapacity-gcnew-gcnewcapacity-gcold-gcoldcapacity-gcpermcapacity-gcutil-gccause Ygct The time taken by the new generation of GC processing. -gc-gcnew-gcutil-gccause FGC The number of times the full GC occurred. -gc-gccapacity-gcnew-gcnewcapacity-gcol

the virtual CPU or CPUs while the hypervi- SOR is servicing another virtual Processor.%idle Show the percentage of time that the CPU or CPUs were idle and the System do not has an outstand-ing disk I/O request.Device Utilization ReportTPS indicate the number of transfers per second that were issued to the device. A transfer is an I/O request to the device. Multiple logical requests can is combined into a single I/O request to the device. A transfer is of indeterminate size. blk_read/s indica

First look at my own experimental environment is in what kind of archiving mode: Sql> Select T.log_mode from V$database t; Log_mode------------Noarchivelog Two. After determining that it is in the non-archive mode, I first create a regular table t_test_nologging 1. Create a table, the so-called general is in the creation process does not specify this table is nologging Sql> CREATE TABLE t_test_nologging as SELECT * from T_down_log where 1=0; Table created sql> Select COUNT (*) from T_down_log;

-ROM). Though a CD-RW disc can be erased and written again, character CD players and other equipment generally perform better with CD-R media ( Always check if a CD player supports CD-RW before you buy it ). A standard CD-RW is 120 in diameter and usually comes with a capacity of either 640 MB or 700 mb. A CD-RW will store 74 or 80 minutes of CD audio, but as mentioned, is much less compatible with CD players than CD-R. Using software solutions suchNero burning Rom, At-home users can create au

size) { double kiloByte = size / 1024; if (kiloByte 1) { // return size + "Byte"; return "0K";} double megaByte = kiloByte / 1024; if (megaByte 1) { BigDecimal result1 = new BigDecimal(Double.toString(kiloByte)); return result1.setScale(2, BigDecimal.ROUND_HALF_UP) .toPlainString() + "KB"; } double gigaByte = megaByte / 1024; if (gigaByte 1) { BigDecimal resul

View existing VG # lsvgrootvgoravgdatavg view the usage status of each VG # lsvgoravg focuses on several values PPSIZE: 512 megabyte (s) View existing VG # lsvg rootvg oravg datavg view the status of each VG # lsvg oravg focuses on several values pp size: 512 megabyte (s) View existing VG # Lsvg Rootvg Oravg Datavg View the usage status of each VG # Lsvg oravg Focus on several values Pp size: 512

public static String getformatsize (long size) {Double kilobyte = size/1024;if (kilobyte Return size + "B";}Double megabyte = kilobyte/1024;if (megabyte BigDecimal result1 = new BigDecimal (double.tostring (kilobyte));Return Result1.setscale (2, BIGDECIMAL.ROUND_HALF_UP). toplainstring () + "KB";}Double gigaByte = megabyte/1024;if (GigaByte BigDecimal result2 = n

files belowFile files[] = File.listfiles ();for (int i = 0; i Deletefolderfile (Files[i].getabsolutepath (), true);}}if (Deletethispath) {if (!file.isdirectory ()) {//If it is a file, deleteFile.delete ();} else {//directoryif (File.listfiles (). Length = = 0) {//directory without files or directories, deleteFile.delete ();}}}} catch (Exception e) {TODO auto-generated Catch blockE.printstacktrace ();}}} /*** Formatted units** @param size* @return*/public static String getformatsize (double size

-gcnew-gcutil-gccause FGC The number of times the full GC occurred. -gc-gccapacity-gcnew-gcnewcapacity-gcold-gcoldcapacity-gcpermcapacity-gcutil-gccause Fgct The time spent by the full GC operation. -gc-gcold-gcoldcapacity-gcpermcapacity-gcutil-gccause GCT Total time spent by GC operations. -gc-gcold-gcoldcapacity-gcpermcapacity-gcutil-gccause Ngcmn Cenozoic minimum space capacity, in

run; Hi: The percentage of hardware terminals; Si: The percentage of software terminals; Percentage of st:cpu stolen (such as virtual machines running on a real machine)4, KiB Mem: in kilobytes to view memory, physical memory;5, KiB Swap: In kilobytes view memory, virtual memory, usage 0, if more than 0 indicates that the physical memory is not enough, the use of virtual memoryProcess information

= Priority: Precedenceni= nice value: Negative priority > Positive priorityvirt= Virtual Image (KB): The total amount of VM memory used by the process, in kilobytes. Virt=swap+resRes= resident Size (KB): The amount of physical memory that the process uses, not swapped out, in kilobytesShr= shared Mem Size (KB): Shared memory sizes, in kilobytess= process Status: Progress State, D: Non-disruptive sleep state, R: Run, T: Trace/Stop, Z: Zombie Processtim

= Priority: Precedenceni= nice value: Negative priority > positive priorityvirt= Virtual Image (kb): The total amount of VM memory used by the process, in Kilobytes. Virt=swap+resRes= resident Size (kb): The amount of physical memory that the process uses, not swapped out, in kilobytesshr= shared Mem size (kb): shared memory sizes, in kilobytesS= process status: Progress state, D: non-disruptive sleep state, R: run, T: trace/stop, Z: Zombie Processtim

user processes that have changed precedence 99.7%id CPU percent of idle CPU 0.1%wa CPU percentage of processes waiting for input/output 0.0%hi Percentage of CPU consumed by the hard interrupt request service 0.1%si Percentage of CPU consumed by soft interrupt request Service 0.0%st The St (steal Time) virtual percentage. Physical memory information of the IV behavior: c

look at it. Memory displays information about the RAM: [] swpd: Represents the amount of memory switched to the swap partition, in kilobytes. [] Free: Indicates the amount of memory currently idle in kilobytes. [] Buff: Represents the buffer size (to be written to disk) in kilobytes. [] cache: Represents the buffer size (read from disk) in

priority The total amount of virtual memory used by the VIRT process, in kilobytes. Virt=swap+res The size, in kilobytes, of the physical memory used by the RES process and not swapped out. Res=code+data SHR shared memory size, in kilobytes S process state. d= non-disruptive sleep status r= run s= sleep t= track/stop z= zombie Process %cpu pe