Subj : Re: kermit protocol in syncterm
To   : Digital Man
From : fusion
Date : Fri Aug 18 2023 05:19 pm

On 18 Aug 2023, Digital Man said the following...
 
 DM> Ymodem-G has almost 0 overhead, so (without compression or other
 DM> cheats), it's really not possible for Kermit (the protocol) to be faster
 DM> than Ymodem-G. And Zmodem is only a little slower than Ymodem-G.

i can't replicate this. i get 1.12MB/s sexyz to sexyz (syncterm) with zmodem and 0.86MB/s with ymodem-g sexyz to sexyz. certainly an improvement over mystic's but something is a bottleneck.

this is on an i7-3520M .. no spring chicken for sure. both transfers used 38-50% cpu during the transfer. (for comparison a 65MB/s transfer to the same machine uses 8%)

i can totally see gkermit outperforming ymodem-g.

--- Mystic BBS v1.12 A47 2021/12/25 (Windows/32)
 * Origin: cold fusion - cfbbs.net - grand rapids, mi

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