commandline session $perl test1.pl 1..1 ok 1 $cat test1.pl #!/usr/bin/perl -w print “1..1n”; print 1 + 1 == 2 ? “ok 1n” : “not ok 1n”; $perl 1+1 $perl -e No code specified for -e. $perl -d Loading DB routines from perl5db.pl version 1.33 Editor support available. Enter h or `h h’ for help, or …
Author Archives: jeffrin
Linux KERNEL TESTING asynctest TINKER ON PYTHON SHELL
$python Python 2.7.3 (default, Jun 15 2012, 15:26:07) [GCC 4.7.0] on linux2 Type “help”, “copyright”, “credits” or “license” for more information. >>> from autotest.client import utils, test >>> x = utils.AsyncJob(“sleep 1 && echo hi && sleep 1 && echo hi && sleep 1 && echo hi && sleep 1”) DEBUG:root:Running ‘sleep 1 && echo …
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Linux KERNEL TESTING asynctest
commandline session $sudo autotest-local run asynctest/ 18:58:57 INFO | Writing results to /usr/local/lib/python2.7/dist-packages/autotest/client/results/default 18:58:58 INFO | START —- —- timestamp=13625710038 localtime=Mar 06 18:58:58 18:58:58 INFO | START asynctest asynctest timestamp=13625710038 localtime=Mar 06 18:58:58 18:59:00 INFO | Process 1 stdout is now hi 18:59:00 INFO | hi 18:59:00 INFO | 18:59:02 INFO | Process 1 result …
R Plotting a Function Curve
commandline session > curve(x^3 – 5*x, from=-4, to=4) > png(file=”RcurveA.png”) > curve(x^3 – 5*x, from=-4, to=4) > dev.off() null device 1 > png(file=”RcurveB.png”) > curve(x^3 – 5*x, from=-4, to=0) > dev.off() null device 1 > png(file=”RcurveC.png”) > curve(x^3 – 5*x, from=10, to=50) > dev.off() null device 1 >
Linux KERNEL TESTING signaltest
ABOUT Signal(IPC) Signals are a limited form of inter-process communication (IPC), typically used in Unix, Unix-like, and other POSIX-compliant operating systems. A signal is an asynchronous notification sent to a process or to a specific thread within the same process in order to notify it of an event that occurred. Signals originated in 1970s Bell …
Linux KERNEL TESTING cyclictest DETAIL
ABOUT SOFTWARE TESTING Software testing is an investigation conducted to provide stakeholders with information about the quality of the software product or service under test.[1] Software testing can also provide an objective, independent view of the software to allow the business to appreciate and understand the risks of software implementation. Test techniques include the process …
R boxplot fsstress Linux Kernel Test
commandline session > chown creat dread dwrite fdata fdatasync fsync getdents link mkdir mknod read readlink rename link mkdir mknod read readlink rmdir stat symlink sync truncate unlink write boxplot(chown,creat,dread,dwrite,fdatasync,fsync,getdents,link,mkdir,mknod,read,readlink,rename,rmdir,stat,symlink,sync,truncate,unlink,write) > boxplot(chown,creat,dread,dwrite,fdatasync,fsync,getdents,link,mkdir,mknod,read,readlink,rename,rmdir,stat,symlink,sync,truncate,unlink,write) > png(file=”Rfsstress.png”) > boxplot(chown,creat,dread,dwrite,fdatasync,fsync,getdents,link,mkdir,mknod,read,readlink,rename,rmdir,stat,symlink,sync,truncate,unlink,write) > dev.off function (which = dev.cur()) { if (which == 1) stop(“cannot shut down device 1 (the null device)”) …
fsstress ZEROS FREQUENCIES OF ALL OPERATIONS
commandline session $sudo ./fsstress -z -c -S -d /home/jeffrin/fs/ -p 100 -n 100 chown 0/0 write op creat 0/0 write op dread 0/0 dwrite 0/0 write op fdatasync 0/0 write op fsync 0/0 write op getdents 0/0 link 0/0 write op mkdir 0/0 write op mknod 0/0 write op read 0/0 readlink 0/0 rename 0/0 …
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Linux KERNEL TESTING fsstress
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 …
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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