Basho Bench summary png, what is the meaning of Latency Percentile
rkevinburton at charter.net
Thu Apr 11 12:37:19 EDT 2013
This a tangential question but I cannot get the PNG device to work. I get
priv/summary.r -i tests/current
Loading required package: plyr
Loading required package: grid
Loading required package: getopt
Loading required package: proto
Loading required package: ggplot2
Loading required package: methods
Error in X11(paste("png::", filename, sep = ""), g$width, g$height,
unable to start device PNG
In addition: Warning message:
In png(file = opt$outfile, width = opt$width, height = opt$height) :
unable to open connection to X11 display ''
make: *** [results] Error 1
From: riak-users [mailto:riak-users-bounces at lists.basho.com] On Behalf Of
Sent: Thursday, April 11, 2013 5:42 AM
To: riak-users at lists.basho.com
Subject: Basho Bench summary png, what is the meaning of Latency Percentile
at the moment i evaluate a graphics (summary.png) generated with Basho Bench
I wonder what the meaning of this 99th, 99.9th and 95th Percentile curves
My guess is that for e.g. 99th curve means: 99% of all measured latencies
(one measured value for each node at a definite time) have been lower than
the shown value at one point in time.
I only have three nodes in this cluster, so i guess the 99.9th, 99th and
95th curves are showing the latency for one of the nodes in this particular
Can someone explain it to me please.
I added one summary picture.
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