commandline session $sudo ./fsstress -c -S -d /home/jeffrin/fs/ -p 100 -n 100 chown 3/39 write op creat 4/39 write op dread 4/39 dwrite 4/39 write op fdatasync 1/39 write op fsync 1/39 write op getdents 1/39 link 1/39 write op mkdir 2/39 write op mknod 2/39 write op read 1/39 readlink 1/39 rename 2/39 write …
Monthly Archives: February 2013
R boxplot – Produce box-and-whisker plot(s) of the given (grouped) values
R shell session > boxplot function (x, …) UseMethod(“boxplot”) > boxplot(1,2) > boxplot(1,2) > boxplot(1,2,3) > threads levels(threads) [1] “0” “1” “2” “3” “4” “5” “6” “7” “8” “9” > maximum boxplot(threads,maximum) > minimum boxplot(threads,maximum,minimum) > actual boxplot(threads,maximum,minimum,actual) > png(file=”Rboxplot.png”) > boxplot(threads,maximum,minimum,actual) > dev.off() null device 1 > FIXME : create a R boxplot image …
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Linux KERNEL TESTING cyclictest
commandline session $sudo autotest-local run cyclictest 21:11:12 INFO | Writing results to /usr/local/lib/python2.7/dist-packages/autotest/client/results/default 21:11:13 INFO | START —- —- timestamp=1361806873 localtime=Feb 25 21:11:13 21:11:13 INFO | START cyclictest cyclictest timestamp=1361806873 localtime=Feb 25 21:11:13 21:12:56 INFO | GOOD cyclictest cyclictest timestamp=1361806976 localtime=Feb 25 21:12:56 completed successfully 21:12:56 INFO | END GOOD cyclictest cyclictest timestamp=1361806976 localtime=Feb 25 …
R DATAVISUAL barplot
commandline session > test labeli barplot(labeli,test) Error in -0.01 * height : non-numeric argument to binary operator > barplot(test) > barplot(labeli) Error in -0.01 * height : non-numeric argument to binary operator > datavisual library(nutshell) Error in library(nutshell) : there is no package called ‘nutshell’ > barplot(datavisual) Error in barplot.default(datavisual) : ‘height’ must be a …
R qplot from ggplot2 and binwidth=10 lscalls
commandline session > lscalls [1] 2 707 16 11 25 26 24 38 4 5 2 1 2 9 1 1 2 1 1 [20] 1 1 > qplot(lscalls) Error: could not find function “qplot” > library(ggplot) Error in library(ggplot) : there is no package called ‘ggplot’ > library(ggplot2) Loading required package: reshape Loading required …
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Linux KERNEL TESTING cyclictest ERROR
commandline session $sudo client/autotest-local run cyclictest /home/jeffrin/kernel-testing/autotest-autotest-e48676a/client/tests/cyclictest/control 18:53:47 INFO | Writing results to /home/jeffrin/kernel-testing/autotest-autotest-e48676a/client/results/default 18:53:48 INFO | START —- —- timestamp=1361712228 localtime=Feb 24 18:53:48 18:53:48 INFO | START cyclictest cyclictest timestamp=1361712228 localtime=Feb 24 18:53:48 18:53:48 ERROR| [stderr] make: *** No targets specified and no makefile found. Stop. 18:53:48 ERROR| child process failed 18:53:48 INFO | …
Linux KERNEL TESTING hwclock
commandline session $sudo client/autotest-local –verbose run hwclock /home/jeffrin/kernel-testing/autotest-autotest-e48676a/client/tests/hwclock/control 00:47:31 INFO | Writing results to /home/jeffrin/kernel-testing/autotest-autotest-e48676a/client/results/default 00:47:31 DEBUG| Initializing the state engine 00:47:31 DEBUG| Persistent state client.steps now set to [] 00:47:31 DEBUG| Persistent option harness now set to None 00:47:31 DEBUG| Persistent option harness_args now set to None 00:47:31 DEBUG| Selected harness: standalone 00:47:31 DEBUG| …
KEEP OPEN THE LEARNING PATH
R histogram ls
commandline session > lscalls [1] 2 707 16 11 25 26 24 38 4 5 2 1 2 9 1 1 2 1 1 [20] 1 1 > hist(lscalls) > hist(lscalls) > png(file=”Rhist-ls.png”) > hist(lscalls) > dev.off() null device 1 >
Hacking with the Erlang Emulator
The erl program starts an Erlang runtime system. The exact details (for example, whether erl is a script or a program and which other programs it calls) are system-dependent. commandline session $erl Erlang R15B01 (erts-5.9.1) [source] [64-bit] [async-threads:0] [kernel-poll:false] Eshell V5.9.1 (abort with ^G) 1> b(). ok 2> double = fun(value) -> 2*value end. ** …