Title:
ヒット率推定装置、ヒット率推定方法、ヒット率推定プログラム及び記録媒体
Document Type and Number:
Japanese Patent JP4144005
Kind Code:
B2
Abstract:
Using a counter of the Web server 10 , a leave probability p 1 , average value m and variance s 2 of think time, and hit ratio r are calculated for a session data cache 12 involving a predetermined Web application. For a first reading of a group of reading plural session data proximate temporally, p 1 a, ma and s 2 a, and average value a of the number of data reading sessions in each group are defined. A computational expression setting means 21 sets a computational expression f(a)=a including p 1 , m, s 2 , r, p 1 a, ma and s 2 a, the computational expression for a fix point computing method having a variable a. A true value searching means 22 searches an almost true value of a by the fix point computing method based on the computational expression f(a)=a. An estimation means 23 estimates ra based on a searched value of a.
Inventors:
Toshiyuki Hama
Application Number:
JP2003386440A
Publication Date:
September 03, 2008
Filing Date:
November 17, 2003
Export Citation:
Assignee:
INTERNATIONAL BUSINESS MASCHINES CORPORATION
International Classes:
G06F12/00; G06F12/08; G06F15/16; G06F17/30
Domestic Patent References:
| JP200263064A |
Attorney, Agent or Firm:
Hiroshi Sakaguchi
Yoshihiro City
Takeshi Ueno
Yoshihiro City
Takeshi Ueno
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