2016年12月23日
Stationary point
摘要： https://en.wikipedia.org/wiki/Stationary_point https://zh.wikipedia.org/wiki/驻点 阅读全文
posted @ 2016-12-23 22:42 papering 阅读(331) 评论(0) 推荐(0)
Memory Allocation in the MySQL Server
摘要： https://dev.mysql.com/doc/internals/en/memory-allocation-mysql-server.html MySQL Internals Manual / Memory Allocation / Memory Allocation in the MySQL 阅读全文
posted @ 2016-12-23 20:02 papering 阅读(255) 评论(0) 推荐(0)
the OS maintains a number of queues
摘要： COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION To do its job, the OS maintains a number of queues. Each queue is simpl 阅读全文
posted @ 2016-12-23 19:57 papering 阅读(237) 评论(0) 推荐(0)
matches field ID value 17.9.1 The LABEL element
摘要： https://www.w3.org/TR/html401/interact/forms.html#edef-LABEL 阅读全文
posted @ 2016-12-23 18:36 papering 阅读(410) 评论(0) 推荐(0)
corresponding SQLSTATE values general error
摘要： http://dev.mysql.com/doc/refman/5.7/en/error-messages-server.html B.3 Server Error Codes and Messages MySQL programs have access to several types of e 阅读全文
posted @ 2016-12-23 16:01 papering 阅读(287) 评论(0) 推荐(0)
控制变量法-初中物理-Nobel Lecture, December 12, 1929-php执行SET GLOBAL connect_timeout=2效果
摘要： Navicat 'ww' root账户 用php、Navicat、\MySQL\bin\mysql.exe 执行 阅读全文
posted @ 2016-12-23 15:41 papering 阅读(401) 评论(0) 推荐(0)
Allowed memory size Out of memory ini_set('memory_limit', '-1');
摘要： Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 51 bytes) Fatal error: Out of memory (allocated 1013186560) (tried to 阅读全文
posted @ 2016-12-23 14:45 papering 阅读(235) 评论(0) 推荐(0)
PROCESS STATES
摘要： COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION To understand the operation of the short-term scheduler, we need to con 阅读全文
posted @ 2016-12-23 13:07 papering 阅读(264) 评论(0) 推荐(0)
I O memory 时时考虑
摘要： I O memory 时时考虑 阅读全文
posted @ 2016-12-23 12:16 papering 阅读(123) 评论(0) 推荐(0)
IN()
摘要： High Performance My SQL, Third Edition Consider the followingWHERE clause: WHERE eye_color IN('brown','blue','hazel') AND hair_color IN('black','red', 阅读全文
posted @ 2016-12-23 12:14 papering 阅读(249) 评论(0) 推荐(0)
max_allowed_packet
摘要： http://dev.mysql.com/doc/refman/5.7/en/comparison-operators.html#function_in The number of values in the IN list is only limited by the max_allowed_pa 阅读全文
posted @ 2016-12-23 12:10 papering 阅读(160) 评论(0) 推荐(0)
LENGTH() CHAR_LENGTH()
摘要： http://dev.mysql.com/doc/refman/5.7/en/string-functions.html#function_length LENGTH(str) Returns the length of the string str, measured in bytes. A mu 阅读全文
posted @ 2016-12-23 12:06 papering 阅读(176) 评论(0) 推荐(0)
Rochester Memory Hardware Error Research Project
摘要： http://www.cs.rochester.edu/research/os/memerror/ 阅读全文
posted @ 2016-12-23 11:18 papering 阅读(162) 评论(0) 推荐(0)
A Realistic Evaluation of Memory Hardware Errors and Software System Susceptibility
摘要： http://www.cs.rochester.edu/~kshen/papers/usenix2010-li.pdf Abstract Memory hardware reliability is an indispensable part of whole-system dependabilit 阅读全文
posted @ 2016-12-23 11:16 papering 阅读(263) 评论(0) 推荐(0)
Calculate its MTBF assuming 2000 FITS for each DRAM
摘要： COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION A common unit of measure for failure rates of electronic components is 阅读全文
posted @ 2016-12-23 10:06 papering 阅读(953) 评论(0) 推荐(0)
the computer spends over 96% of its time waiting for I/O devices to finish transferring data
摘要： COMPUTER ORGANIZATION AND ARCHITECTURE DESIGNING FOR PERFORMANCE NINTH EDITION 阅读全文
posted @ 2016-12-23 09:01 papering 阅读(139) 评论(0) 推荐(0)