[Bug 216759] [kern] Memory speed significantly slower under QEMUKVM emulation according to sysbench

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216759

--- Comment #2 from andrew at azar-a.net ---
(In reply to andrew from comment #1)
# dd if=/root/test of=/dev/md1 bs=512
262144+0 records in
262144+0 records out
134217728 bytes transferred in 4.829553 secs (27790924 bytes/sec

# dd if=/root/test of=/dev/md1 bs=1K
131072+0 records in
131072+0 records out
134217728 bytes transferred in 2.478277 secs (54157674 bytes/sec)

Apparently the bug is only visible with anything smaller than 1M

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