Where does one find more information about miniRTL 2.0?
Thanks
Adam
At 03:32 PM 11/16/99 -0700, [EMAIL PROTECTED] wrote:
>On Tue, Nov 16, 1999 at 02:47:22PM -0700, [EMAIL PROTECTED] wrote:
>> THANKS, Stuart and GN DeSouza for the table posted comparing RTL & RTAI in
>> such a basic and cogent way! A first question about it:
>> Under the column 486, RTL v2 with linux kernel 2.2.x reads "n" =>
>> presumably meaning this does not run on 486's. But is that true? I've run
>> miniRTL 2.0 derived directly from RTL 2.0, with kernel 2.2.13 on a
Pentium I.
>
>The table is not correct. We do great on 486s now.
>
>>
>> Either way, this table would be great in THE RT MANUAL, with a change in
>> header(s) so as to include 586es. I could help with the manual too, but
>> again as noviate.
>>
>> Dr. S.C.
>>
>>
>> At 02:54 PM 16-11-1999 +0000, you wrote:
>> >Hi Gloria,
>> >
>> >I have forwarded a table previously posted on the RTL list.
>> >
>> >Stuart.
>> >
>> >Gl�ria wrote:
>> >>
>> >> Hello:
>> >>
>> >> Is there any document about the differences betwen RTL and RTAI?
>> >>
>> >> Thanks in advance.
>> >>
>> >>
>> >>
>> >> --
>> >> Gl�ria Hern�ndez Ballester
>> >>
>> >> e-mail: [EMAIL PROTECTED]: [EMAIL PROTECTED]
>> >Return-Path: [EMAIL PROTECTED]
>> >Received: from rtlinux.cs.nmt.edu (rtlinux.cs.nmt.edu [129.138.6.62]) by
>> hinge.mistral.co.uk (8.8.5/8.6.9) with ESMTP id TAA15859; Thu, 7 Oct 1999
>> 19:46:31 +0100
>> >Message-Id: <[EMAIL PROTECTED]>
>> >Date: Thu, 7 Oct 1999 14:35:38 -0500 (EST)
>> >From: Guilherme Nelson DeSouza <[EMAIL PROTECTED]>
>> >Reply-To: Guilherme Nelson DeSouza <[EMAIL PROTECTED]>
>> >Subject: [rtl] Table, API
>> >To: [EMAIL PROTECTED]
>> >MIME-Version: 1.0
>> >Content-Type: TEXT/plain; charset=us-ascii
>> >
>> >Content-MD5: rhcKNx2XyqRpurLqxAPS+g==
>> >
>> >
>> > Again, thanks to those who sent corrections/suggestions.
>> >
>> > The table and API-differences below are getting smoother.
>> >I hope it has converged to something useful to other people
>> >in this list.
>> >
>> > As we all (probably) expected, the differences between RTL
>> >and RTAI are NOT that many (refer to RTLv2 and RTAIv6). As
>> >a matter of fact, in my opinion the "only" discussion in this
>> >list should be around POSIX compliance, once that this should
>> >be the common denominator and, at the same time, the unifier
>> >between both implementations. Other than that there are some
>> >"unimportant" details such as unified header files, similar
>> >installations, etc. But yet, that should come naturally after.
>> >
>> >
>> > Guilherme
>> >
>> >
>>
>---------------------------------------------------------------------------
>> -------
>> >| | I | S | Sched. | S |Po- |pthre|F | Shr| FP | GPL | Ker- | 486
>> | PPC |
>> >| | P | e | | | M | six | -| I | Mem| | | nel |
>> | |
>> >| | C | m |Per.| OS | P | |ads | FO| | | | |
>> | |
>>
>-------------------|-------------------------------------------------------
>> -------
>> >| | | | | | | | | | | | | |
>> | |
>> >| RTL | o | o | w/ | w/ | n | * | n | y | o | y | y | 2.0.x | y
>> | n |
>> >| v1 | | |8254|8254| | | | | | | | |
>> | |
>> >| | | | | | | | | | | | | |
>> | |
>>
>---------------------------------------------------------------------------
>> -------
>> >| | | | | w/ | | | | | | | | |
>> | |
>> >| | | | |8254| | | | | | | | |
>> | |
>> >| | | | | + | | | | | | | | |
>> | in |
>> >| | | | w/ |TSC | | | | | | | | |
>> | |
>> >| RTL | o | o | | | y | * | ** | y | o | y | y | 2.2.x | n
>> |deve-|
>> >| v2 | | |8254|APIC| | | | | | | | |
>> | |
>> >| | | | | in | | | | | | | | |
>> |lopm.|
>> >| | | | |SMP | | | | | | | | |
>> | |
>> >| | | | | | | | | | | | | |
>> | |
>>
>---------------------------------------------------------------------------
>> -------
>> >| | | | |8254| | | | | | | | |
>> | |
>> >| | | | | in | | | | | | | | |
>> | |
>> >| | | | |UP -| | | | | | | | |
>> | |
>> >| | | | |SMP | | | | | | | | |
>> | |
>> >| | | | w/ | & | | | | | | | | | y
>> | |
>> >| RTAI| y | y | |MUP | y | * | ** | y | o | y | y | 2.2.x |
>> | n |
>> >| v.6 | | |8254| | | | | | | | | |(for
>> | |
>> >| | | | |APIC| | | | | | | | |1
>> CPU| |
>> >| | | | | in | | | | | | | |
>> |only)| |
>> >| | | | |SMP | | | | | | | | |
>> | |
>> >| | | | | & | | | | | | | | |
>> | |
>> >| | | | |MUP | | | | | | | | |
>> | |
>>
>---------------------------------------------------------------------------
>> -------
>> >
>> > y - embeded in the RT modules
>> > n - not implemented
>> > o - optional (it can be "insmod'ed" separately)
>> > * - in RTAI, a POSIX lite API is implemented on top of the original API
>> > in RTL, the original API is implemented on top of a POSIX lite API.
>> >** - RTAI - dynamic thread creation, conditional variables and priority
>> > inheritance mutex,
>> > RTL - static thread creation.
>> >
>> >
>> >Original API comparison
>> >=======================
>> >
>> > What follows is a comparison btw the two original APIs (RTAI
>> >and RTLv1). We are not listing the POSIX (lite) API present in
>> >both recent releases of RTAI and RTL.
>> >
>> >
>> >set up peridic mode
>> >------------------
>> >
>> >RTL:
>> > RTIME task_ticks;
>> > task_ticks = (RT_TICKS_PER_SEC/FREQ);
>> > rtl_set_periodic_mode(task_ticks);
>> >
>> >RTAI:
>> > RTIME task_ticks;
>> > rt_set_periodic_mode(void);
>> > task_ticks = nano2count(1000000000/FREQ)
>> > start_rt_timer(task_ticks)
>> >
>> >
>> >Tell Linux you will be using the FPU
>> >--------------------------------------
>> >
>> >RTL:
>> > ??
>> >
>> >RTAI:
>> > rt_linux_use_fp(1)
>> >
>> >
>> >initialise a task
>> >-----------------
>> >
>> >RTL:
>> > rt_task_init( RT_TASK *task,
>> > void (*fn)(int),
>> > int data,
>> > int stack_size,
>> > int priority )
>> >
>> > If it uses the FPU, add:
>> >
>> > rt_task_use_fp( RT_TASK *task, 1 )
>> >
>> >RTAI:
>> > rt_task_init( RT_TASK *task,
>> > void (*fn)(int),
>> > int data,
>> > int stack_size,
>> > int priority,
>> > int uses_fpu,
>> > void (*signal)(void) )
>> >
>> >
>> >
>> >set a (periodic) task running
>> >-----------------------------
>> >
>> >RTL/RTAI:
>> >
>> > rt_task_make_periodic( RT_TASK *task,
>> > RTIME start_time_ticks,
>> > RTIME period_ticks)
>> >
>> >
>> >suspend a running task until the next tick
>> >-------------------------------------------
>> >
>> >RTL:
>> > rt_task_wait(void)
>> >
>> >RTAI:
>> > rt_task_wait_period(void)
>> >
>> >
>> >
>> >cleanup/stop a task
>> >--------------------
>> >
>> >RTAI: stop_rt_timer(void)
>> >RTL/RTAI: rt_task_suspend(RT_TASK *task)
>> > rt_task_delete( RT_TASK *task)
>> >
>> >
>> >create a fifo
>> >--------------
>> >
>> >RTL:
>> > rtf_create(unsigned int fifo, int fifo_size)
>> >
>> >RTAI:
>> > rtf_create_using_bh(unsigned int, int size, 0)
>> >
>> >NOTE: both can be used with the simple rtf_create, but the behaviour is
>> >different. Under RTAI, a user task will only be woken up at the next
>> >run of schedule (this is an intended feature). To get the same effect
>> >of waking up as soon as possible, use the above code.
>> >
>> >
>> >put data to a fifo
>> >-------------------
>> >
>> >RTL/RTAI:
>> > rtf_put(unsigned int fifo, void *buf, int count)
>> >
>> >
>> >get data from a fifo
>> >----------------------
>> >
>> >RTL/RTAI:
>> > rtf_get(usigned int fifo, void *buf, int count)
>> >
>> >
>> >
>> >destroy a fifo
>> >---------------
>> >
>> >RTL/RTAI:
>> > rtf_destroy(usigned int fifo)
>> >
>> >
>> >
>> >Filename comparison
>> >===================
>> >
>> >Another problem is the name and location of files. This means that
>> >Makefiles and code has to be changed to locate the different include
>> >files.
>> >
>> >Header names
>> >-----------
>> >
>> >RTL:
>> > rtl_fifo.h, rtl_sched.h
>> >
>> >RTAI:
>> > rtai_fifos.h, rtai_sched.h
>> >
>> >Note: in addition you must also include rtai.h first for RTAI.
>> >
>> >
>> >
>> >
>> > -------------< G. N. DeSouza >-------------
>> > ---------< [EMAIL PROTECTED]>---------
>> > --< http://rvl1.ecn.purdue.edu/~gnelson >--
>> >
>> >
>> >
>> >
>> >------------- End Forwarded Message -------------
>> >
>> >
>> >
>> >
>> > -------------< G. N. DeSouza >-------------
>> > ---------< [EMAIL PROTECTED]>---------
>> > --< http://rvl1.ecn.purdue.edu/~gnelson >--
>> >
>> >
>> >
>> >--- [rtl] ---
>> >To unsubscribe:
>> >echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
>> >echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
>> >----
>> >For more information on Real-Time Linux see:
>> >http://www.rtlinux.org/~rtlinux/
>> >
>> >
>>
>> --- [rtl] ---
>> To unsubscribe:
>> echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
>> echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
>> ----
>> For more information on Real-Time Linux see:
>> http://www.rtlinux.org/~rtlinux/
>--- [rtl] ---
>To unsubscribe:
>echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
>echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
>----
>For more information on Real-Time Linux see:
>http://www.rtlinux.org/~rtlinux/
>
--- [rtl] ---
To unsubscribe:
echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR
echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED]
----
For more information on Real-Time Linux see:
http://www.rtlinux.org/~rtlinux/
