記憶體 Paging 頻率分析

資料結構：

統計分析圖表：

GNU-R：

library(DBI) library(RMySQL) library(car) GetDB <- function (SQL) { mySQL.Connection <- dbConnect(MySQL(), host=mySQL.Host, user=mySQL.User, password=mySQL.Password, db=mySQL.Schema) ResultSet <- dbGetQuery(mySQL.Connection, SQL) dbDisconnect(mySQL.Connection) ResultSet } SaveScatterPlotGraphics <- function(pngFileName, formula, graphicsTitle, graphicsXTitle, graphicsYTitle) { png(file=pngFileName) scatterplot(formula, reg.line=lm, smooth=TRUE, spread=TRUE, boxplots='xy',

span=0.5, main=graphicsTitle, xlab=graphicsXTitle, ylab=graphicsYTitle) dev.off() } PrintANOVA <- function (formula, heading) { cat(paste("ANOVA(", heading, ")", sep="")) cat("\n") R.ANOVA.PAGE_FAULTS = aov(formula) summary(R.ANOVA.PAGE_FAULTS) print(model.tables(R.ANOVA.PAGE_FAULTS, "means"), digits=3) cat("\n\n") } mySQL.Host <- "127.0.0.1" mySQL.User <- "nmon" mySQL.Password <- "nmon" mySQL.Schema <- "nmon" R.Chart.Folder <- "/var/nmon/Results/Graphics" R.Analysis.Folder <- "/var/nmon/Results/Analysis" mySQL.SQL <- paste("SELECT DISTINCT DATE(ZZZZ) AS TXN_DATE FROM ",

mySQL.Schema, ".page ORDER BY ZZZZ LIMIT 30", sep="") mySQL.DATA <- GetDB(mySQL.SQL) Date.Start <- mySQL.DATA$TXN_DATE[1] Date.End <- mySQL.DATA$TXN_DATE[length(mySQL.DATA$TXN_DATE)] mySQL.SQL <- paste("SELECT HOSTNAME, TO_DAYS(ZZZZ) AS TXN_DATE,

AVG(faults) AS PAGE_FAULTS, AVG(pgin) AS PAGE_IN, AVG(pgout) AS PAGE_OUT, AVG(reclaims) AS PAGE_RECLAIMS, AVG(scans) AS PAGE_SCANS FROM ", mySQL.Schema, ".page WHERE DATE(ZZZZ) BETWEEN '", Date.Start, "' AND '", Date.End,

"' GROUP BY HOSTNAME, DATE(ZZZZ) ORDER BY HOSTNAME, DATE(ZZZZ)", sep="") mySQL.DATA <- GetDB(mySQL.SQL) TXN_DATE <- (mySQL.DATA$TXN_DATE) HOSTNAME <- (mySQL.DATA$HOSTNAME) PAGE_FAULTS <- (mySQL.DATA$PAGE_FAULTS) PAGE_IN <- (mySQL.DATA$PAGE_IN) PAGE_OUT <- (mySQL.DATA$PAGE_OUT) mySQL.Chart <- paste(R.Chart.Folder, "/", "AVG_HOST_PAGE_FAULTS.png", sep="") SaveScatterPlotGraphics(mySQL.Chart, PAGE_FAULTS~TXN_DATE | HOSTNAME, "PAGING.FAULTS~TXN.DATE by HOST (Last 30 Days)", "Day #", "PAGING FAULTS") mySQL.Chart <- paste(R.Chart.Folder, "/", "AVG_HOST_PAGE_IN.png", sep="") SaveScatterPlotGraphics(mySQL.Chart, PAGE_IN~TXN_DATE | HOSTNAME, "PAGING.IN~TXN.DATE by HOST (Last 30 Days)", "Day #", "PAGING IN") mySQL.Chart <- paste(R.Chart.Folder, "/", "AVG_HOST_PAGE_OUT.png", sep="") SaveScatterPlotGraphics(mySQL.Chart, PAGE_OUT~TXN_DATE | HOSTNAME, "PAGING.OUT~TXN.DATE by HOST (Last 30 Days)", "Day #", "PAGING OUT") sink(paste(R.Analysis.Folder, "/", "AVG_HOST_PAGING.txt", sep="")) PrintANOVA(PAGE_FAULTS~factor(HOSTNAME), "PAGE_FAULTS") PrintANOVA(PAGE_IN~factor(HOSTNAME), "PAGE_IN") PrintANOVA(PAGE_OUT~factor(HOSTNAME), "PAGE_OUT") sink() rm(list=(ls()))