FreeBSD Multimedia
FreeBSD Multimedia Resources List
Links on this page refer to multimedia resources (podcast, vodcast, audio recordings,
video recordings, photos) related to FreeBSD or of interest for FreeBSD users.
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Tag: concurrency
-
Robert Luciani - M:N threading
in DragonflyBSD
Source: DCBSDCon
Added: 24 May 2009
Tags: dcbsdcon, dcbsdcon2009, slides, dragonflybsd, concurrency, robert
luciani
PDF (1.5
Mb, 23 pages)
Ineffective concurrency mechanisms in an operating system can lead to low performance in
both single and multiprocessor environments. Practical setbacks involved with attempting
overly invasive kernel changes have made it difficult in the past to implement new and
innovative concurrency systems. This paper describes the rationale behind interfaces in
the DragonFly BSD operating system intended to provide high performance and scalability
on multiprocessor architectures. Using a lock-free processor centric approach, DragonFly
BSD has developed a unique thread system with the potential for excellent
scalability.
-
Ted Unangst - OpenBSD vs SMP,
threading, and concurrency
Source: DCBSDCon
Added: 24 May 2009
Tags: dcbsdcon, dcbsdcon2009, slides, openbsd, smp, threading, concurrency,
ted unangst
PDF (675
Kb, 32 pages)
I will discuss the current status of kernel SMP support, the rthreads thread library, and
relevant future developments. Over the years, we have accumulated several concurrency
primitives in the kernel, causing some confusion amongst developers, so I will lay out
the origin and correct usage for each. The talk is primarily targeted at the budding
OpenBSD kernel developer, but I will also describe the end-user effects of each
topic.