Asp Forum - Scalable Distributed Reader-Writer Mutex version 1.3 is here...

Ramine

10/20/2015 10:04:00 PM

Hello,

Scalable Distributed Reader-Writer Mutex version 1.3 is here...

Now version2 of my distributed reader-writer mutex doesn't use any
atomic operations and/or StoreLoad style memory barriers on the reader
side, so it's very fast..

Author: Amine Moulay Ramdane, based on Dmitry Vyukov C++ Reader-Writer Mutex

Description:

A scalable Distributed Reader-Writer Mutex based on the Dmitry Vyukov
C++ Reader-Writer Mutex. This scalable Distributed Reader-Writer Mutex
works accross processes and threads.

There is two options to choose from, you can choose to use RWLock by
uncommenting the define`s option called "TRWLock" inside the file called
defines1.inc , or you can choose to use RWLockX by uncommenting the
define`s option called "TRWLockX" inside the file called defines1.inc ,
if you set it to RWLock , it will spin-wait, but if you set it to
RWLockX it will not spin-wait , but it will wait on the Event objects
and my SemaMonitor.

To compile it for MacOSX or Linux, please uncomment the define's option
called "threads" inside the file called defines1.inc, but to use it
accross processes and threads under windows , please comment the
define's option called "threads"...

And to use version1 of this scalable distributed RWLock uncomment the
define's option version1 and comment the define's option version2 and to
use version2 that is much more faster and scalable, uncomment the
define's option version2 and comment the define's option version1.

There is no limitation on version1.

But on version2 you are limited to 1000 threads and you have to start
once and for all your threads and work with all your threads, don't
start every time a thread and exit from the thread.. Version2 of my
distributed reader-writer mutex doesn't use any atomic operations and/or
StoreLoad style memory barriers on the reader side, so it's very fast,
but you have to use the define's option TLW_RWLockX or the define's
option TRWLockX inside the defines1.inc file for that.

You can download my Scalable Distributed Reader-Rriter Mutex from:

https://sites.google.com/site/aminer68/scalable-distributed-reader-wr...

Language: FPC Pascal v2.2.0+ / Delphi 7+: http://www.freep...

Operating Systems: Windows, Mac OSX , Linux...

Required FPC switches: -O3 -Sd -dFPC -dFreePascal

-Sd for delphi mode....

Required Delphi switches: -$H+ -DDelphi

{$DEFINE CPU32} and {$DEFINE Windows32} for 32 bit systems

{$DEFINE CPU64} and {$DEFINE Windows64} for 64 bit systems

Thank you,
Amine Moulay Ramdane.

comp.programming.threads

Scalable Distributed Reader-Writer Mutex version 1.3 is here...

Ramine

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