[nycbug-talk] Advanced UNIX Basics Management

[nikolai]

> Hi All,
>
> Much like the 'Tips-And-Tricks' thread a few weeks back:
> At work, I'm charged with giving a talk to Developers and DBA's on the
> following topic:
>
>    "UNIX Process, Memory, and Disk- Userland Monitoring Tools for Non-
> UNIX developers"
>
> My company is a Java shop, with plenty of Ruby, Python, and loads of
> shell scripts running around- in BSD and Linux systems- so this talk
> is all about trying to get everyone on the same page with 'the classic
> basics'.
>
> --
> With that, I thought I'd hit list to see what folks would have any
> input?  What am I missing?
>
> The high-level outline is below, any comments/criticism is welcome,
> I'm looking for stuff I've missed-
>
> Best,
> .ike
>
>
>
> --
> Each section below is split into a 'read whatever is happening' part,
> and 'do something with whatever is happening' part- most devs' tasks
> at my company just need to have visibility into things like what part
> of their code is eating the system, basic issues.
>
> I am explicitly *not* looking for good 3rd party tools, (pstree, for
> example)- I am looking to cover the basics of what's just expected to
> be there on our typical stock UNIX systems- (FreeBSD and OpenBSD, and
> CentOS Linux here, to be precise).
>
> I'm also not really looking for DTrace type tools, that's a whole
> exploration on it's own- especially when it comes to apps which aren't
> written in C.
>
>
> ##############################
> - Userland/Kernel Structure Basics (2 minute spiel)
> - man(1) is your friend, so is dmesg(8)
>
> - Processes
>    - stats/info facilities
>      + using procfs(5)
>      + ps(1) (flags and some handy awk(1) parsing)
>      + top(1) (briefly, everyone knows top...)
>    - management tools
>      + kill(1), killall(1) (flags!)
>      + nice(1), renice(8)
>
> - Memory
>    - stats/info facilities
>      + ps(1) (flags and some handy awk parsing)
>      + top(1) (briefly, everyone knows top...)
>      + swapinfo(8)
>    - management tools
>      - swapon(8), swapoff(8)
>
>
> - Disk
>    - stats/info facilities
>      + iostat(8)
>      + df(1) and du(1)
>      + lsof(8) (non-stock on many UNIX systems, but worth mention?)
>      + top(1) disk i/o tricks
>    - management tools
>      + disk mount(8) basics
>      + nfs, living with it basics
>    - advanced but very useful for developers:
>      + memory filesystems (creating, using)
>        - disk-backed memory filesystems
>
> --
> Bonus Networking section, perhaps,
>
> - Network
>    - UNIX stats/info facilities
>      + ifconfig(8)
>      + netstat(1)
>      + tcpdump(1)
>    - UNIX management tools
>      + ifconfig(8)
>      + netstat(1)
>
> ##############################
>
>
>
> _______________________________________________
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> talk at lists.nycbug.org
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>

dtrace on FreeBSD/Solaris/MacOSX
oprofile and probably valgrind on Linux

My 2c,
--
 Nikolai