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2019 Jan 05
1
Re: [PATCH nbdkit 0/7] server: Implement NBD_FLAG_CAN_MULTI_CONN.
...(458MB/s)(51.2GiB/120001msec)
write: IOPS=112k, BW=437MiB/s (458MB/s)(51.2GiB/120001msec)
(3) I reimplemented the memory plugin using a simple malloc, which is
how it used to be in nbdkit <= 1.5.8:
read: IOPS=133k, BW=518MiB/s (544MB/s)(60.7GiB/120002msec)
write: IOPS=133k, BW=518MiB/s (543MB/s)(60.7GiB/120002msec)
(4) I ran fio directly against /dev/shm to get some idea of how much
performance we are losing by using NBD at all:
read: IOPS=1018k, BW=3978MiB/s (4171MB/s)(466GiB/120001msec)
write: IOPS=1018k, BW=3979MiB/s (4172MB/s)(466GiB/120001msec)
Rich.
--
Richard Jones, Vir...
2019 Jan 05
4
Re: [PATCH nbdkit 0/7] server: Implement NBD_FLAG_CAN_MULTI_CONN.
On Fri, Jan 04, 2019 at 05:26:07PM -0600, Eric Blake wrote:
> On 1/4/19 4:08 PM, Richard W.M. Jones wrote:
> > First thing to say is that I need to do a *lot* more testing on this,
> > so this is just an early peek. In particular, although it passed
> > ‘make check && make check-valgrind’ I have *not* tested it against a
> > multi-conn-aware client such as the
2019 Jan 05
15
[PATCH nbdkit v2 01/11] server: Implement NBD_FLAG_CAN_MULTI_CONN.
For existing commits, this is almost identical to v1, except that I
updated some commit messages and reordered the commits in a somewhat
more logical sequence.
The main changes are the extra commits:
[06/11] plugins: Return NBD_FLAG_CAN_MULTI_CONN from some readonly plugins.
- Readonly plugins that can set the flag unconditionally.
[09/11] partitioning: Return NBD_FLAG_CAN_MULTI_CONN.
[10/11]