the slave directory:$ mkdir.. /slave/baseIn the next step, all the required databases can be replicated. At this time, the following is the case on the sample master:[Email protected] base]$ ls-lTotal 72DRWX------2 HS HS 8192 FEB 24 11:53 1DRWX------2 HS HS 8192 FEB 24 11:52 13051DRWX------2 HS HS 8192 FEB 25 11:49 13056DRWX------2 HS HS
= defaults to 100 mysql> show processlist; mysql> show full processlist ;---------------------------------------- -------- Max_open_files is determined by the open_files_limit parameter. The maximum number of files opened by mysql is affected by two parameters: the maximum number of files opened by the system (ulimit-n) and open_files_limit. Increase the value of max_open_files ----------------------------------------------------------- in/etc/my. cnf is added to open_files_limit =
during garbage collection. Can be used together with the aboveOutput Format:Total time for which application threads were stopped: 0.0468229 seconds
-XX: PrintHeapAtGC: Print detailed stack information before and after GCOutput Format:34.702: [GC {Heap before gc invocations = 7:Def new generation total 55296 K, used 52568 K [0x1ebd0000, 0x227d0000, 0x227d0000)Eden space 49152 K, 99% used[0x1ebd0000, 0x21bce430, 0x21bd0000)From space 6144 K, 55% used[0x221d0000, 0x22527e10, 0x227d0000)To space
played , so the Sample_data event is immediately triggered . So we're going to add a listener function : function Onsampledata (se:sampledataevent): void{} Next add some sound data to this sound object to play sampledataevent there is a binary data" property bytearray.float method -1.0 to 1.0 Span lang= "en-us" xml:lang= "en-us". At this point the binary variable is set to each float value is commonly said sample 2048 and 8192.
: + printgcapplicationstoppedtime: Print the time when the program is suspended during garbage collection. Can be used together with the aboveOutput Format:Total time for which application threads were stopped: 0.0468229 seconds
-XX: printheapatgc: Print detailed stack information before and after GCOutput Format:34.702: [GC {heap before GC invocations = 7:Def New Generation total 55296 K, used 52568 K [0x1ebd0000, 0x227d0000, 0x227d0000) Eden space 49152 K, 99% used[0x1ebd0000, 0x21bce43
[0x221d0000, 0x22527e10, 0x227d0000)To space 6144 K, 0% used [0x21bd0000, 0x21bd0000, 0x221d0000)Tenured generation total 69632 K, used 2696 K [0x227d0000, 0x26bd0000, 0x26bd0000)The space 69632 K, 3% used[0x227d0000, 0x22a720f8, 0x22a72200, 0x26bd0000)Compacting perm Gen total 8192 K, used 2898 K [0x26bd0000, 0x273d0000, 0x2abd0000)The space 8192 K, 35% used [0x26bd0000, 0x26ea4ba8, 0x26ea4c00, 0x273d0000)
slide. The music scope of the slide is-8192 ~ 8191, but the parameter is a positive number. For example, to set it to 0, it should be 0-(-8192) = 8192, which is the parameter. The 7-bit double byte of 8192 is represented as "8192 mod 128 = 00 h;
660/dev/raw [0-9]">/etc/rc. local
Dd if =/dev/zero of =/dev/raw/raw1 bs = 8192 k count = 3000Dd if =/dev/zero of =/dev/raw/raw2 bs = 8192 k count = 3000Dd if =/dev/zero of =/dev/raw/raw3 bs = 8192 k count = 1200Dd if =/dev/zero of =/dev/raw/raw4 bs = 8192 k count = 1200Dd if =/dev/zero of =/dev/raw/raw5 bs =
collection. Can be used together with the aboveOutput Format:Total time for which application threads were stopped: 0.0468229 seconds
-XX: printheapatgc: Print detailed stack information before and after GCOutput Format:34.702: [GC {heap before GC invocations = 7:Def New Generation total 55296 K, used 52568 K [0x1ebd0000, 0x227d0000, 0x227d0000)Eden space 49152 K, 99% used[0x1ebd0000, 0x21bce430, 0x21bd0000)From space 6144 K, 55% used[0x221d0000, 0x22527e10, 0x227d0000)To space 6144 K, 0% us
program, obviously, This length must be long enough to map the entire GPIO module's register address, in order to normally access the GPIO register in the user program, which is set to two page size, that is 8192 bytes (0x01c20000 ~ 0x01c21fff), from Datasheet view, This address space contains all the registers of the CCU, PIO, TIMER, OWA, PWM, KEYADC modules.After the mapping, we can get an object of the Mmap class, using this object, we can read an
connected to different pins on the CPU bus.Read operation of 1.1.3 SDRAMSDRAM to read operations, the address line is sent to the address to read the data, through the knowledge of the previous, the address is divided into 3 parts, line address, column address, L-bank chip selection signal. The chip selection (L-bank) operation and the efficient operation of the line can be done at the same time.At the same time as CS and L-bank are addressed, RAS (Nsras line address Select communication number
.
fromSix.movesImportUrllibdefSchedule (A, B, c):"""A: Data blocks that have already been downloadedB: Size of the data blockC: The size of the remote file """Per= 100.0*float(A*b/float(c)ifPer> -: Per= - Print("a"APrint("B", b)Print("C"CPrint(' {:. 2f}% '.format(per)) Url= ' Https://avatars1.githubusercontent.com/u/14261323?s=400u=150449ce27748c3b23b5175f8c8342c918ae6aa8 v=4 'Local= ' Mylogo.png 'FileName, _=Urllib.request.urlretrieve (URL, local, Schedule)# (' Mylogo.png ', Print
Simplicity is not simple. What it needs is persistence! Because of its simplicity, we have designed a Nest thermostat, a treadmill, and a digital video recorder. Because of its simplicity, apple, on the verge of bankruptcy, is thriving. Because of its simplicity, you have used wangfei. Fisher's space pens, Swiss Army k
larger, you do not need to modify the value;
If the value of the open files parameter is less than 4096 (the default is 1024), modify the open files parameter value to 8192 by using the following method: Ulimit-a
1. Use root login, modify file/etc/security/limits.conf
vi/etc/security/limits.conf add
Xxx-nofile 8192
XXX is a user, if you want to replace all users with *, set the value of the hardware config
takes up about 60MB of RAM! Dizzy, what's going on? Is there a mistake? To reorganize the idea: Select files, send commands, when received return confirmation message, open file, read ... Read??? No, I read the whole file into memory, no wonder (in fact, this error will not happen because Windows has virtual memory!). But it is true, to read the entire file into memory and then send out, a bit to make the system difficult ah! To optimize the optimization.
Go back to the server code for optimiz
the bank and the Bit Width of an SDRAM chip. The bit width indicates each transmission cycle (here it refers to a cycle of the clock sent to the CLK end) the amount of data transmitted (16 bits ).
(3) Amount of SDRAM
The amount of SDRAM is the number of storage units. The formula is as follows:
Amount of SDRAM = number of banks * (number of rows * Number of columns)
Here, the number of banks is 4, while the number of rows and the number of columns are described in
The number of rows can be a0
= dgram
Protocol = udp
Wait = yes
User = root
Server =/usr/sbin/in. tftpd
Server_args =-u nobody-s/tftpboot
Per_source = 11
CPIs = 100 2
Flags = IPv4
}
Copy/image/pxeboot/initr. img, vmlinux, and isolinux/*. msg to the/tftpboot directory on the first installation CD of LINUX.
# Cd/tftpboot
# Mkdir pxelinux. cfg
# Vi default and save it to the created pxelinux. cfg directory
======================= =============
Default linux
Prompt 1
Timeout 600
Display boot. msg
F1 boot. msg
F2 options. msg
F3
, I'll first check if the sprite frame is in the cache, and if it doesn't, load it. You'll see how it's done in the back.Understand when and where to clear the cacheDo not randomly clear the cache, or you can try to free up some memory and remove unused textures. That's not a good code design. Sometimes, it even increases the number of loads and causes "intermittent memory to soar" multiple times. Analyze the memory usage of your program, see what's Inside the memory, and what should be erased,
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.