bf1 expansion

The 4th Chapter RTOs the SMP expansion design and realizes the single core RTOs SMP expansion, needs to solve the system initialization, the task scheduling, the CPU synchronization and mutually exclusive, as well as the interrupt processing and so on aspect question, this article will propose the corresponding solution for these problems, and carries on the SMP extension realization on the uc/os-ii. 4.1 Sy

Expansion and collection of grouped aggregations in reports and techniques for dealing with irregular hierarchies (do not expand without child elements, delete + symbols) The expansion and the effect of packet aggregation is very common in the SSRS, and sometimes there are some more special situations to deal with. For example, when grouping merge, some hierarchies are irregular, and some groups have two l

#include "cv.h" #include "highgui.h" using namespace CV; int main (int argc, char* argv[]) { Mat src = imread ("misaka.jpg"); Mat DST; Input image //output image //cell size, here is the 8-bit unit //corrosion position of the 5*5, a negative core ///Corrosion frequency two times Erode (Src,dst,mat (5,5,cv_8u), Point ( -1,-1), 2); Imwrite ("Erode.jpg", DST); Input image //output image //cel

Reprinted from: http://yangrong.blog.51cto.com/6945369/1582184 Docker container once started, the parameters can not be changed, production environment is the most common change is the port mapping, in order to solve this problem, then the first plan, this article lists two port planning scenarios, if there is a subsequent maintenance to increase the port mapping scenario, this paper also gives the dynamic port mapping expansion scheme. 1, single IP m

Label:When our application reaches a certain scale, our data will skyrocket. The original database may not meet our read and write requirements. But the growth of data is a business-wide delight, but the bigger headache is how to achieve effective expansion. How to do it without error.The simplest is the sub-database table.So how does the database know which machine to read the data on?Like I had a 10w record before. Now consider placing the top 10w

Vi/etc/my.cnfInnodb_data_home_dir =Innodb_data_file_path=/data/mysql/ibdata1:10m:autoextend (for the current ibdata situation)[[email protected] MySQL] #mkdir-P/data2/mysql[Email protected]]# chown-r mysql:mysql/data2[[email protected] scripts] #du-sh/data/mysql/ibdata174m/data/mysql/ibdata1-RW-RW----1 mysqlmysql 77594624 Mar 16:21 ibdata1[Email protected] mysql]# VI/ETC/MY.CNFModify ibdata1 for the size just detected, accurate to M , you will get an error when you are too big or too small, and

Tags: disk too creat root code size space restart row Symptoms every time you remove the MySQL container restart no two minutes and report the wrong title df-h command to view the application of each mount space discovery Root home var three files directory the space is full. Baidu on the Internet a bit LIUNX disk expansion operation, the fdisk-l command finally found that the machine has a piece of 270 of the disk is not mounted The PV is c

Index expansion, mainly for B-treeSeveral sources of index bloat:After a large number of deletions, the index pages are sparse, which reduces the efficiency of indexing;PG9.0 the previous version, vacuum full will also cause the index page sparse;Long-running transactions that prohibit vacuum cleanup of the table two cause the page sparse state to persist consistently.Note that Reindex will cause full table lock, do not operate when the system is busy

partition:Fdisk/dev/hdaNL #选择逻辑分区, if not, first create an extended partition and then add the logical partition (hard disk: up to four partitions p-p-p-p or P-P-P-E)6 #分区号 (starting from 5),/dev/hda6T 8e #分区类型8e表示LVM分区W #写入分区表Partprobe #重读分区表Mkfs–t Ext3/dev/hda6 #格式化Partx/dev/hda #查看当前硬盘的分区表及使用情况Second, the creation of PV, expansion vg,lvPvcreate/dev/hda6Vgdisplay #查看当前已经存在的VG信息, taking the existence of vg:volgroup00 as an exampleVgextend Volgroup00

the path defined by the PATH environment variable, the command to be executed the first time it is foundDirect completion: Tab, the user given a string with only one single corresponding commandIndirect completion: The user given a string for the beginning of the corresponding command is not unique, double-click tab to give all the list of satisfied conditions3. Path completionTake the user-given string as the beginning of the path and search for the file name at the beginning of the specified

Introduction to the expansion mechanism of HashMap, ArrayList, StringBuilder, and hashmaparraylist in JAVA Some content in JAVA to be resized is summarized as follows:Part 1: HashMap HashSet Hashtable Part 2:CopyOnWriteArrayList ArrayList Vector Part 3:StringBuffer sb = new StringBuffer ();StringBuilder sbu = new StringBuilder ();First, analyze the following source code: (JDK1.8) 1. Initial capacity.2. Expansion