发明名称 |
AUTONOMICALLY TUNING THE VIRTUAL MEMORY SUBSYSTEM OF A COMPUTER OPERATING SYSTEM |
摘要 |
A method, information processing system, and computer readable medium for efficiently distributing a computer system's main memory among applications running in that operating system instance. More specifically, threshold values used by a page replacement algorithm of the virtual memory manager are automatically tuned in response to the load on the memory of a computer system. One such threshold value is the lower threshold of free memory which is changed as a function of the load on the memory. For example, such a load might be represented as the number of threads that were added to a waiting queue during a defined interval of time divided by the number of clock tics in that interval. This representation is known as the thread wait rate. This rate is then compared to a target rate to determine if the lower threshold value should be changed. When the free memory space falls below the lower threshold, a page replacement daemon is used to page out memory to make more memory space available. ® KIPO & WIPO 2007
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申请公布号 |
KR20070024552(A) |
申请公布日期 |
2007.03.02 |
申请号 |
KR20067025218 |
申请日期 |
2006.11.30 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
JANN JOEFON;PATTNAIK PRATAP CHANDRA;BURUGULA RMANJANEYA SARMA |
分类号 |
G06F12/00;G06F12/08;G06F12/12 |
主分类号 |
G06F12/00 |
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