twc pyr

Discover twc pyr, include the articles, news, trends, analysis and practical advice about twc pyr on alibabacloud.com

3D view transformation and camera model

First, let's take a look at the two commonly used camera models in the game: the Euler's camera model and the uvn camera model. 1. Euler's camera model Euler angles is a method used to describe the direction of a rigid body in a three-dimensional Euclidean space) describes the direction of an object. Notes: 1) undo Assume that the angle transformation sequence applied to an object is Pyr. To restore the original direction of the object, the transfor

Oracle common SQL syntax set

$ rollname B where a. usn = B. usn;3. I/O ratio of the monitored tablespace:Select df. tablespace_name name, df. file_name "file", f. phyrds pyr, f. phyblkrd pbr, f. phywrts pyw,F. phyblkwrt pbwFrom v $ filestat f, dba_data_files dfWhere f. file # = df. file_id4. I/O ratio of the empty file system:Select substr (a. file #, 1, 2) "#", substr (a. name, 1, 30) "name", a. status, a. bytes,B. phyrds, B. phywrtsFrom v $ datafile a, v $ filestat BWhere a. f

Common performance query SQL statements

(Bytes/sgasize * 100, 2) "Free Space percentage (% )"From (select sum (bytes) sgasize from SYS. V _ $ sgastat) s,SYS. V _ $ sgastat FWhere F. Name = 'free memory' -- Monitor the I/O ratio of tablespaceSelect DF. tablespace_name name,DF. file_name "file ",F. phyrds Pyr,F. phyblkrd PBR,F. phywrts pyw,F. phyblkwrt PBWFrom v $ filestat F, dba_data_files DFWhere F. File # = DF. file_idOrder by DF. tablespace_name;-- Monitor the I/O ratio of the file syste

Image feature Extraction: A description of key steps of SIFT location algorithm

illustrate the problem:Pyr . Resize (noctaves* (Noctavelayers + 3));The Pyr in the above code represents an image of the entire scale space, noctaves is the number of groups, and Noctavelayers is the s that we define.2.3 Why is it the 3rd one?I believe you're looking at a lot of the SIFT algorithm description, which reads, takes the last image of the bottom 3rd image interlaced as the next set of first images.The answer is to ensure the continuity of

OpenCV detect straight, round, rectangular __dst

= pt2->y-pt0->y; Return (DX1*DX2 + dy1*dy2)/sqrt ((dx1*dx1 + dy1*dy1) * (dx2*dx2 + dy2*dy2) + 1e-10); } Returns sequence of squares detected on the image. The sequence is stored in the specified memory storage cvseq* findSquares4 (iplimage* img, cvmemstorage* storage) { cvseq* contours; int I, C, l, N = 11; Cvsize sz = cvsize (Img->width -2, Img->height -2); iplimage* timg = Cvcloneimage (IMG); Make a copy of input image iplimage* Pyr

DBA Common SQL table space and data file

, max_extents, v.curext curextent from Dba_rollback_segs R, V$rollstat v Where= V.usn (+) Order by Segment_name; 4. View the rollback segment name and size Select file_name from Dba_data_files 5. Query tablespace or data file Auto-expansion Select df.tablespace_name name, DF. file_name " file ", f.phyrds pyr, f.phyblkrd PBR, f.phywrts pyw, f.phyblkwrt PBW

Oracle Query Statement Encyclopedia (Oracle Basic Command Encyclopedia one) _oracle

' | | To_char (i)); End Sql>wrap Iname=a.sql; Pl/sql wrapper:release 8.1.7.0.0-production on Tue Nov 27 22:26:48 2001 Copyright (c) Oracle Corporation 1993, 2000. All Rights Reserved. Processing Aa.sql to AA.PLB Run AA.PLB Sql> @AA. PLB; 145. How to monitor the waiting of cases? Select Event,sum (Decode (wait_time,0,0,1)) "Prev", SUM (decode (wait_time,0,1,0)) "Curr", COUNT (*) "Tot" From v$session_wait Group BY event order by 4; 146. How do I roll back the contention for the segment? Select na

file contains static Inline,extern inline

compilation is used to prevent duplicate definitions when containing multiple headersDefined only when not defined#ifndef NULL#define NULL ((void *) 0)#endif(2) The most commonly used to prevent the inclusion of multiple headers, a header file contains two times, resulting in a duplicate definition#ifndef _filename_h#define _filename_h#endif/* _filename_h * *2. #ifdef#else/****** Optional ******/#endif(1) Determining whether a part of a program participates in compiling or not#ifdef __LIBRARY__

Oracle Monitoring script Statements

(gets,0,0,misses/gets*100) Ratio1,Decode (immediate_gets+immediate_misses,0,0,Immediate_misses/(immediate_gets+immediate_misses) *100) Ratio2From V$latch WHERE name in (' Redo allocation ', ' redo copy ');Monitor the use of Log_bufferSelect Name,value from V$sysstat where name in (' Redo entries ', ' Redo buffer allocation retries ')Monitor the database buffer hit ratio in the SGASelect A.value + b.value "logical_reads", C.value "Phys_reads",Round ((a.value+b.value)-c.value)/(A.value+b.value))

Oracle Common Monitoring SQL statements

    1. Wait for the monitoring case:Select Event,sum (Decode (wait_time,0,0,1)) prev, sum (decode (wait_time,0,1,0)) curr,count (*)From v$session_waitGroup BY event order by 4;    2. Race conditions for rollback segments :Select Name,waits,gets,waits/gets ratio from V$rollstat a,v$rollname b where a.usn=b.usn;    3. Monitor the I/O ratio of the table space:Select Df.tablespace_name name,df.file_name "file", F.phyrds pyr,f.phyblkrd pbr,f.phywrts pyw,F.

Oracle Performance Detection SQL statements

1. Wait for the monitor case Select Event,sum (Decode (wait_time,0,0,1)) "Prev", Sum (Decode (wait_time,0,1,0)) "Curr", COUNT (*) "Tot" From V$session_wait Group BY event order by 4;Note: ORDER by 4 refers to sort by 4th column2. Race Conditions for rollback segments Select name, waits, get, waits/gets "Ratio" from v$rollstat A, v$rollname b where A.usn = b.usn;3. Monitoring table space I/O ratio select df.tablespace_name name,df.file_name "file", F.phyrds

Features of common Oracle system data dictionary tables and system packages

$rollstat C, V$rollname D WHERE C.usn = D.usn; --How to monitor I/O ratios in the table space? SELECT b.tablespace_name Name, B.file_name "File", A.phyrds Pyr, A.PHYBLKRD PBR, A.phywrts Pyw, A.phyblkwrt PBW From V$filestat A, Dba_data_files B WHERE a.file# = b.file_id Order BY B.tablespace_name; --How to monitor the I/O ratio of the file system? Select substr (c.file#, 1, 2) "#", SUBSTR (C.name, 1,) "Name", C.status, C.bytes, D.phyrds

Oracle common SQL syntax set

ratio from V $ rollstat A, V $ rollname B where a. USN = B. USN;3. I/O ratio of the monitored tablespace:Select DF. tablespace_name name, DF. file_name "file", F. phyrds Pyr, F. phyblkrd PBR, F. phywrts pyw,F. phyblkwrt PBWFrom v $ filestat F, dba_data_files DFWhere F. File # = DF. file_id4. I/O ratio of the empty file system:Select substr (A. File #, 1, 2) "#", substr (A. Name, 1, 30) "name", A. Status, A. bytes,B. phyrds, B. phywrtsFrom v $ datafil

Learning Dynamic Performance Table (9)--v$filestat

be inconsistent; L Sum (physical blocks read) is similar to physical reads in V$sysstat; L Sum (physical blocks written) is similar to physical writes in V$sysstat; The data read (read better by the cache) is handled by the service process. Write from buffer cache can only be performed by DBWR, which is processed by the service process. V$filestat the connection column inColumn View Joined column (s)----------- ------------------------- -------------------------file# Dba_data_f

Oracle-common monitoring SQL

1. Waiting for monitoring cases:Select event, sum (decode (wait_time, 1) Prev, sum (decode (wait_time, 0) curr, count (*)From v $ session_waitGroup by event order by 4;2. rollback segment contention:Select name, waits, gets, Waits/gets ratio from V $ rollstat A, V $ rollname B where a. USN = B. USN;3. I/O ratio of the monitored tablespace:Select DF. tablespace_name name, DF. file_name "file", F. phyrds Pyr, F. phyblkrd PBR, F. phywrts pyw,F. phyblkwrt

Oracle basic knowledge-3

. PLB Run AA. PLB SQL> @ AA. PLB; 145. How to monitor the waiting of cases? Select event, sum (decode (wait_time, 0, 0, 1) "Prev ", Sum (decode (wait_time, 0, 0) "curr", count (*) "tot" From v $ session_wait Group by event order by 4; 146. How do I roll back the contention of segments? Select name, waits, gets, Waits/gets "ratio" From v $ rollstat C, V $ rollname d Where C. USN = D. USN; 147. How to monitor the I/O ratio of a tablespace? Select B. tablespace_name name, B. file_name "file", A. ph

Learning Dynamic Performance Table 9-V $ filestat

blocks written) is similar to physical writes in V $ sysstat; L Data Reading (better than direct read by cache) is processed by the service process. Writing from the buffer cache can only be performed by dbwr, and direct writing is handled by the service process. V $ filestatConnection column in Column view joined column (s) ------------------------------------------------------------- File # dba_data_files file_id File # V $ datafile file # Example: 1. Obtain the physical reads and writes of d

SQL statement for Oracle database performance monitoring

1. Waiting for monitoring cases Select event, sum (decode (wait_time, 0, 0, 1) "Prev ",Sum (decode (wait_time, 0, 0) "curr", count (*) "tot"From v $ session_waitGroup by event order by 4; 2. rollback segment contention Select name, waits, gets, Waits/gets "ratio"From v $ rollstat A, V $ rollname BWhere a. USN = B. USN; 3. Monitor the I/O ratio of tablespaces Select DF. tablespace_name name, DF. file_name "file", F. phyrds Pyr,F. phyblkrd PBR

The file contains static inline and extern inline.

compilation is used.That is, it is defined only when no definition is available.# Ifndef null# Define null (void *) 0)# Endif(2) The most common practice is to prevent a header file from being contained twice when multiple head files are contained, resulting in repeated definitions.# Ifndef _ filename_h# DEFINE _ filename_h# Endif/* _ filename_h */2. # ifdef# Else/****** optional ******/# Endif(1) determine whether a part of the program is compiled or not.# Ifdef _ Library __# Endif/***** _ Lib

Performance monitoring-SQL statement monitoring

, substr (A. Program, 60/100) prog, A. Terminal, osuser, value/valueFrom v $ session A, V $ process B, V $ sesstat CWhere C. Statistic # = 12 and C. Sid = A. Sid and A. paddr = B. ADDR order by value DESC; Monitor the I/O ratio of a tablespace Select DF. tablespace_name name, DF. file_name "file", F. phyrds Pyr,F. phyblkrd PBR, F. phywrts pyw, F. phyblkwrt PBWFrom v $ filestat F, dba_data_files DFWhere F. File # = DF. file_idOrder by DF. tablespace_na

Total Pages: 3 1 2 3 Go to: Go

Contact Us

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.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.