From: Takuya Yoshikawa <takuya.yoshikawa@gmail.com>
To: avi@redhat.com, mtosatti@redhat.com
Cc: kvm@vger.kernel.org
Subject: [PATCH 0/3 kvm-unit-tests] Dirty logging performance test
Date: Sun, 15 Jan 2012 12:41:31 +0900 [thread overview]
Message-ID: <20120115124131.3b460d1d85194edaa251e635@gmail.com> (raw)
My 32 bit host running on an intel core i3 box said:
$ ./api/dirty-log-perf
dirty-log-perf: 262144 slot pages / 262144 mem pages
rip 804a74a
rip 804a74a
get dirty log: 51571 ns for 1 dirty pages
rip 804a74a
get dirty log: 81190 ns for 2 dirty pages
rip 804a74a
get dirty log: 66606 ns for 4 dirty pages
rip 804a74a
get dirty log: 60408 ns for 8 dirty pages
rip 804a74a
get dirty log: 46711 ns for 16 dirty pages
rip 804a74a
get dirty log: 83563 ns for 32 dirty pages
rip 804a74a
get dirty log: 74367 ns for 64 dirty pages
rip 804a74a
get dirty log: 87240 ns for 128 dirty pages
rip 804a74a
get dirty log: 140161 ns for 256 dirty pages
rip 804a74a
get dirty log: 191288 ns for 512 dirty pages
rip 804a74a
get dirty log: 981045 ns for 1024 dirty pages
rip 804a74a
get dirty log: 1000755 ns for 2048 dirty pages
rip 804a74a
get dirty log: 1122837 ns for 4096 dirty pages
rip 804a74a
get dirty log: 1362598 ns for 8192 dirty pages
rip 804a74a
get dirty log: 1202789 ns for 16384 dirty pages
rip 804a74a
get dirty log: 1598484 ns for 32768 dirty pages
rip 804a74a
get dirty log: 2456946 ns for 65536 dirty pages
rip 804a74a
get dirty log: 3366358 ns for 131072 dirty pages
rip 804a74a
get dirty log: 5634134 ns for 262144 dirty pages
Takuya Yoshikawa (3):
Add dirty logging performance test
dirty-log-perf: Split guest memory into two slots
dirty-log-perf: Take slot size from command line
api/dirty-log-perf.cc | 144 +++++++++++++++++++++++++++++++++++++++++++++++++
config-x86-common.mak | 5 ++-
2 files changed, 148 insertions(+), 1 deletions(-)
create mode 100644 api/dirty-log-perf.cc
--
1.7.5.4
next reply other threads:[~2012-01-15 3:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-15 3:41 Takuya Yoshikawa [this message]
2012-01-15 3:43 ` [PATCH v2 1/3 kvm-unit-tests] Add dirty logging performance test Takuya Yoshikawa
2012-01-15 3:44 ` [PATCH 2/3 kvm-unit-tests] dirty-log-perf: Split guest memory into two slots Takuya Yoshikawa
2012-01-15 3:45 ` [PATCH 3/3 kvm-unit-tests] dirty-log-perf: Take slot size from command line Takuya Yoshikawa
2012-01-18 13:50 ` [PATCH 0/3 kvm-unit-tests] Dirty logging performance test Marcelo Tosatti
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