This book is quite old, but it has a good chapter about BSD performance tools and about performance measurement in general
https://www.amazon.com/Optimizing-UNIX-Performance-Amir-Majidimehr/dp/0131115510 Such books are rare because if you know how operation systems and computers work, you do not need anything except man pages for tools. On Fri, Apr 20, 2018 at 6:35 PM, <sunny.na...@igreen.pk> wrote: > Is there any books that describe how to deal with these tools ? > > Sunny Naqvi > > On Fri, Apr 20, 2018 at 04:42 PM, IL Ka <kazakevichi...@gmail.com> wrote: > > high load > > > top, vmstat. You can also try to profile app with dtrace. > > low space disk > > > ``du -d1 -h`` to find huge dir > > see opened files > > > fstat > > On Fri, Apr 20, 2018 at 9:56 AM, <sunny.na...@igreen.pk> wrote: > > Hi > > Sometimes we need to maintain or debug OpenBSD. > I found these links useful : > https://www.openbsd.org/ddb.html (https://www.openbsd.org/ddb.html) > https://man.openbsd.org/crash (https://man.openbsd.org/crash) > https://www.openbsd.org/report.html (https://www.openbsd.org/report.html) > But what do you use guys ? any tricks when things go wrong ? > Like for example facing to 'high load', 'low space disk', 'see opened > files'... > > Thanks > Sunny Naqvi > >