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echo: fe_help
to: All
from: Alexey Fayans
date: 2006-03-05 20:35:54
subject: Message Buffer Size

Hi there, All!

There, I found the message about Mesage Buffer Size. I'll try to translate
it into english.

"It's preferable to set it to 60kb. It was proved by many tests.

In fact, you can set it to 62kb, but some special very big packets with
huge amount of 0x00-0x1f chars could cause FE crash. With 60kb it never
happened.

It seems that documentstion is wrong (about 64kb). There are 2-3kb is added
to these 64kb in fact, which causes data corruption in next memory segment
and a crash as a result. There is no checking, that data can cause
corruption of next segment, is done."

= Forwarded from ARCHIVE ======================================================
 From : Viktor Nozhnov                      2:5020/1668     20 Jan 05 05:39:32
 To   : Alexey Fayans
 Subj : Re^4: А где всё?
===============================================================================
 * Forwarded from area 'TORNADO.SUPPORT'

Среда 19.01.2005 20:56, Alexey Fayans wrote to Viktor Nozhnov:

 AF>>> Запустил тоссинг в ручную. Фастеха на этом пакете просто напросто
 AF>>> трапалась.
 VN>> Message Buffer Size = ?

 AF> Максимально возможный для DPMI версии. 512кб.

Желательно 60. Проверено многочисленными экспериментами.

В принципе, можно и 62, но на искусственных многомегабайтных пакетах с обилием
0x00-0x1f символов может подвиснуть, а с 60 такого не происходило.

В доке, похоже, опечатка (про 64КБ). Т.е. к этим 64 килобайтам  что-то
добавляется на 2-3КБ, происходит порча данных в соседнем сегменте, в
результате - зависание, проверка, что данные могут испортить соседний сегмент -
не осуществляется.
512КБ - для OS/2.

-+- *                       Intel Pentium               ┼A┐
 + Origin:        -== Fido Mobile  96%  Energy  ==-     └┴┼ (2:5020/1668)
===============================================================================

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* Origin: ·∙■[MUSIC·STATION]■[583-9830]■[00:00-08:00]■∙· (2:5030/1997)
SEEN-BY: 633/267 270
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