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- The next version of the c-client distribution will come with tenex2, a new
- memory-miser version of the tenex driver, as the default driver for the
- mail.txt format. It does not read the entire mailbox into memory, and thus
- uses what can be significantly less memory than the original tenex driver.
-
- For systems on which virtual memory/swap space is at a premium, this could
- result in swap space savings and resultant performance improvement. Users who
- have particularly large mailboxes may wish to consider using the mail.txt
- format once the tenex2 driver is installed in their mailer, since it may
- result in significant real time speedups and a reduction of system overhead.
-
- This is done at the possible cost of extra disk traffic and slower global free
- text searches. On a system with adequate memory for buffer cache, the
- overhead compared to the original driver may be merely a matter of some extra
- system call and context-switching overhead.
-
- For the nonce, the original mail.txt format driver will still be available as
- tenex.c/h, but the makefiles will only build the tenex2.c/h version. If the
- tenex2 driver turns out to be a winner, the original driver may be allowed to
- succumb to software rot, so please let me know if the original driver is still
- needed in your environment.
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