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<div class="moz-text-html" lang="x-unicode"> Dear DRBD and WinDRBD
users,<br>
<br>
We've just released another release canidate of WinDRBD:
1.0.0-rc10. This version contains an<br>
optimization on the network receiver side which speeds up
secondary writes by a<br>
factor of 2-4. It also contains fixes for various BSODs.<br>
<br>
For now there are two registry keys that control the receiver
cache: you normally<br>
don't have to touch them: they are in the WinDRBD services key <br>
(HKLM\System\CurrentControlSet\Services\WinDRBD)<br>
<br>
DWORD enable_receiver_cache <0 or 1><br>
DWORD receive_buffer_size <size of cache in bytes >=4K
<=4M > defaults to 128K<br>
<br>
We will change these parameters later to a per resource network
setting in drbd.conf.<br>
<br>
As always the installable EXE can be downloaded from Linbit's
homepage:<br>
<br>
<a class="moz-txt-link-freetext"
href="https://www.linbit.com/linbit-software-download-page-for-linstor-and-drbd-linux-driver/">https://www.linbit.com/linbit-software-download-page-for-linstor-and-drbd-linux-driver/</a><br>
<br>
(scroll down to DRBD 9 Windows Driver)<br>
<br>
Please help testing this release canidate, it is already quite
close to the final<br>
version, <br>
<br>
- Johannes<br>
<br>
---- From WHATSNEW.md:<br>
<br>
Optimization on the network side ("receiver cache"): receive from
socket<br>
in larger chunks (defaults to 128K), this speeds up secondary
writes<br>
by a factor of 2 to 4.<br>
<br>
Fix in wait_event: wait_event should not be interruptible. Also<br>
wait_for_completion should not be interruptible. This fixes lots<br>
of BSODs at various places (process_sender_todo, ...) which mainly<br>
occured at disconnecting a resource.<br>
<br>
There is also an optimization at the backing device side (backing<br>
device cache) but this implementation is currently broken and
probably<br>
will be abandoned (it does not give a speedup). It is disabled by
default.<br>
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