When installing Oracle, the installation may fail due to insufficient swap space allocated. The procedure is as follows:
The swap space is 2 GB.
[[Email protected] Oracle] # FreeTotal used free shared buffers cachedMem: 2039004 1207260 831744 0 22668 833660-/+ Buffers/cache: 350932 1688072Swap: 2097144 0 2097144
Use the DD command to create a temporary swap file.
I believe that the word "Swap" is certainly not unfamiliar, and even has the idea that this is not a simple element exchange. Indeed, swap exchange functions are not old words that are second only to hello word. However, the general algorithm is a little bit of charm in C ++ STL. This article not only elaborates on the STL generic algorithm swap, but also demonst
Swap partition, that is, Swap zone. How many people care about it except when installing Linux? In fact, the adjustment of Swap partitions is crucial to the performance of Linux servers, especially Web servers. By adjusting the Swap partition, you can sometimes bypass the system performance bottleneck and reduce system
When installing Oracle 11g R2, the following message is displayed: swap size failed. The SIZE of SWAP space is smaller than the SIZE of SWAP space required by ORACLE. You do not want to re-partition the SWAP partition. Therefore, create a SWAP file and add 2 GB of file space
This article is Senlie original, reprint please retain this address:Http://blog.csdn.net/zhengsenlieExperience: When Std::swap is inefficient for your type, provide a Swap member function and determine that the function does not throw an exceptionDemo Sample:The SWAP algorithm in STLnamespace Std{template... *pimpl = * (Rhs.pimpl);//...} ... Private:widgetimpl *p
1 //swap in Lib2 namespaceSTD {3Template4 voidSwap (t A, tb)5 {6 T Temp (a);7A =b;8b =temp;9 }Ten } One A //Cons: You need to assign a lot of data, but sometimes you don't have to copy so much content - classWidgetimpl { - Public: the //... - Private: - intA, B, C; -std::vectorDouble> v;//There may be a lot of data to replicate for a long time + //... - }; + A classWidget { at Public: -Widgets (ConstwidgetRHS); -widgetopera
In the network instability, openfire prone to swap situations, because when the client dropped the line, OpenFire can not immediately know that the client has been disconnected, as to how long it takes to find the client disconnection, and the server-side set idle Connections time. The default is 360 seconds. To solve the swap problem, the XMPP protocol supports message receipts, which simply sets the reque
swap () implementations in Java1. Today the lovely TAM teacher sent a topic, using the Java write method to Exchange integer type data, and the entry is fixed, the topic please: If the entry is fixed, then the thought is to redefine an integer type of itself, let it have get and set method, until see the Great God, the code is as follows: Public Static void throws Exception { = Integer. class. Getdeclaredfield ("value"); Field.set
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Given a non-negative integer, you could swap both digits at most once to get the maximum valued number. Return the maximum valued number you could get.
Example 1:input:2736output:7236Explanation:swap the number 2 and the number 7.Example 2:input:9973output:9973Explanation:no swap.Note:The given number is in the range [0, 108]Swap only two digits in an integer to get the maximum value idea
Scan from
01. View Swap Space = FreeCached (cache): refers to the reading of the data stored in memory, when read again, without reading the hard disk and directly from memory read,Accelerates the reading process of the data.Buffer: When writing data, the distributed write operation is saved to memory, when the hard disk is written to a certain extent,Reduced disk fragmentation and repeated seek of hard disks, speeding up the process of writing data.02. New
Linux swap partition control (swap partition lvm management) Note: Linux swap partition uses lvm management. you can use the following method to view swaplv [root @ testdb ~] Vgdisplay-vFindingallvolumegroupsFindingvolume linux swap partition control (swap partition lvm mana
Linux Add a swap file-howto
By nixcraft onMay 18,200 6· 34 comments · last updatedJanuary 4, 2012.
I need additional swap space to improve my system performance. How do I add a swap file to Linux System Using command line options?In Linux, as in most other UNIX-like operating systems, it is common to use a whole partition of a hard disk for swapping. however, wit
Add SWAP partitions in CentOS/LinuxUsage of swap partitioning: swap puts data into swap when the physical memory is insufficient. Therefore, swap plays a role in virtual memory, in a sense, memory space is also increased. Generally, the
1. view the swap space (total ):# The default unit of Free-M is K, and the unit of-M is M.Total used free shared buffers cachedMem: 377 180 197 0 19 110-/+ Buffers/cache: 50 327Swap: 572 0 572
2. view the swap space (file (s)/partition (s )):
Including file and partition details
# Swapon-SEquivalent# Cat/proc/SWAPs
3. Add swap spaceTwo options: Add a
Chen Kozhan========================Operating environment: Ubuntu Server 14.04 LTS=========================Brief introduction1. What is a swap partition and what is the role of2. How to set the swap partition===================================================1. What is a swap partition and what is the role? Swap parti
In fact, there are many ways to add, here is only the official help inside a methodCheck swap spaceFirst, check for any swap files that exist in the system.
Swapon-s
If the return information is the above diagram, then the Swap file does not exist.Check File systemBefore you set up the swap file, check to see if th
The current disk partitions and swap partitions are as follows:
[Root@bys3 ~]# Fdisk-l
disk/dev/sda:21.4 GB, 21474836480 bytes
255 heads, Sectors/track, 2610 cylinders
Units = Cylinders of 16065 * 8225280 bytes
Device Boot Start End Blocks Id System
/DEV/SDA1 * 1 104391 Linux
/dev/sda2 2078 16587112+ Linux
/dev/sda3 2079 2600 4192965 Linux Swap/solaris
[Root@bys3 ~]# Free-m
Total used free shared
1. Buffer and CacheThe free command provides a more concise view of system memory usage relative to top:[[email protected] ~]$ free-m--in megabytesTotal used free shared buffers Cachedmem:32109 30133 1975 0 472 16881-/+ buffers/cache:12780 19328swap:16063 10 16053Mem: represents physical memory statistics.-/+ buffers/cached: Cache statistics representing physical memorySwap: Indicates the usage of the swap partition on the hard disk. Only Mem is actua
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