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Fri, 18 Oct 2024 11:25:24 -0700 (PDT) From: Hyman Huang To: qemu-devel@nongnu.org Cc: Peter Xu , Fabiano Rosas , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , yong.huang@smartx.com Subject: [PATCH v2 5/5] guestperf: Introduce multifd compression option Date: Sat, 19 Oct 2024 02:25:07 +0800 Message-Id: X-Mailer: git-send-email 2.39.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::634; envelope-from=yong.huang@smartx.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @smartx-com.20230601.gappssmtp.com) X-ZM-MESSAGEID: 1729275992194116600 Content-Type: text/plain; charset="utf-8" Guestperf tool does not cover the multifd compression option currently, it is worth supporting so that developers can analysis the migration performance with different compression algorithms. Multifd support 4 compression algorithms currently: zlib, zstd, qpl, uadk To request that multifd with the specified compression algorithm such as zlib: $ ./scripts/migration/guestperf.py \ --multifd --multifd-channels 4 --multifd-compression zlib \ --output output.json To run the entire standardized set of multifd compression comparisons, with unix migration: $ ./scripts/migration/guestperf-batch.py \ --dst-host localhost --transport unix \ --filter compr-multifd-compression* --output outputdir Signed-off-by: Hyman Huang Reviewed-by: Daniel P. Berrang=C3=A9 --- scripts/migration/guestperf/comparison.py | 13 +++++++++++++ scripts/migration/guestperf/engine.py | 14 ++++++++++++++ scripts/migration/guestperf/scenario.py | 7 +++++-- scripts/migration/guestperf/shell.py | 3 +++ 4 files changed, 35 insertions(+), 2 deletions(-) diff --git a/scripts/migration/guestperf/comparison.py b/scripts/migration/= guestperf/comparison.py index 40e9d2eb1d..dee3ac25e4 100644 --- a/scripts/migration/guestperf/comparison.py +++ b/scripts/migration/guestperf/comparison.py @@ -158,4 +158,17 @@ def __init__(self, name, scenarios): Scenario("compr-dirty-limit-50MB", dirty_limit=3DTrue, vcpu_dirty_limit=3D50), ]), + + # Looking at effect of multifd with + # different compression algorithms + Comparison("compr-multifd-compression", scenarios =3D [ + Scenario("compr-multifd-compression-zlib", + multifd=3DTrue, multifd_channels=3D2, multifd_compression= =3D"zlib"), + Scenario("compr-multifd-compression-zstd", + multifd=3DTrue, multifd_channels=3D2, multifd_compression= =3D"zstd"), + Scenario("compr-multifd-compression-qpl", + multifd=3DTrue, multifd_channels=3D2, multifd_compression= =3D"qpl"), + Scenario("compr-multifd-compression-uadk", + multifd=3DTrue, multifd_channels=3D2, multifd_compression= =3D"uadk"), + ]), ] diff --git a/scripts/migration/guestperf/engine.py b/scripts/migration/gues= tperf/engine.py index 4b15322e8d..e11f6a8496 100644 --- a/scripts/migration/guestperf/engine.py +++ b/scripts/migration/guestperf/engine.py @@ -31,6 +31,8 @@ '..', '..', '..', 'python')) from qemu.machine import QEMUMachine =20 +# multifd supported compression algorithms +MULTIFD_CMP_ALGS =3D ("zlib", "zstd", "qpl", "uadk") =20 class Engine(object): =20 @@ -191,6 +193,12 @@ def _migrate(self, hardware, scenario, src, scenario._compression_xbzrle_cache)) =20 if scenario._multifd: + if (scenario._multifd_compression and + (scenario._multifd_compression not in MULTIFD_CMP_ALGS)): + raise Exception("unsupported multifd compression " + "algorithm: %s" % + scenario._multifd_compression) + resp =3D src.cmd("migrate-set-capabilities", capabilities =3D [ { "capability": "multifd", @@ -206,6 +214,12 @@ def _migrate(self, hardware, scenario, src, resp =3D dst.cmd("migrate-set-parameters", multifd_channels=3Dscenario._multifd_channels) =20 + if scenario._multifd_compression: + resp =3D src.cmd("migrate-set-parameters", + multifd_compression=3Dscenario._multifd_compression) + resp =3D dst.cmd("migrate-set-parameters", + multifd_compression=3Dscenario._multifd_compression) + if scenario._dirty_limit: if not hardware._dirty_ring_size: raise Exception("dirty ring size must be configured when " diff --git a/scripts/migration/guestperf/scenario.py b/scripts/migration/gu= estperf/scenario.py index 154c4f5d5f..4be7fafebf 100644 --- a/scripts/migration/guestperf/scenario.py +++ b/scripts/migration/guestperf/scenario.py @@ -30,7 +30,7 @@ def __init__(self, name, auto_converge=3DFalse, auto_converge_step=3D10, compression_mt=3DFalse, compression_mt_threads=3D1, compression_xbzrle=3DFalse, compression_xbzrle_cache=3D10, - multifd=3DFalse, multifd_channels=3D2, + multifd=3DFalse, multifd_channels=3D2, multifd_compressio= n=3D"", dirty_limit=3DFalse, x_vcpu_dirty_limit_period=3D500, vcpu_dirty_limit=3D1): =20 @@ -61,6 +61,7 @@ def __init__(self, name, =20 self._multifd =3D multifd self._multifd_channels =3D multifd_channels + self._multifd_compression =3D multifd_compression =20 self._dirty_limit =3D dirty_limit self._x_vcpu_dirty_limit_period =3D x_vcpu_dirty_limit_period @@ -85,6 +86,7 @@ def serialize(self): "compression_xbzrle_cache": self._compression_xbzrle_cache, "multifd": self._multifd, "multifd_channels": self._multifd_channels, + "multifd_compression": self._multifd_compression, "dirty_limit": self._dirty_limit, "x_vcpu_dirty_limit_period": self._x_vcpu_dirty_limit_period, "vcpu_dirty_limit": self._vcpu_dirty_limit, @@ -109,4 +111,5 @@ def deserialize(cls, data): data["compression_xbzrle"], data["compression_xbzrle_cache"], data["multifd"], - data["multifd_channels"]) + data["multifd_channels"], + data["multifd_compression"]) diff --git a/scripts/migration/guestperf/shell.py b/scripts/migration/guest= perf/shell.py index c85d89efec..1452eb8a33 100644 --- a/scripts/migration/guestperf/shell.py +++ b/scripts/migration/guestperf/shell.py @@ -130,6 +130,8 @@ def __init__(self): action=3D"store_true") parser.add_argument("--multifd-channels", dest=3D"multifd_channels= ", default=3D2, type=3Dint) + parser.add_argument("--multifd-compression", dest=3D"multifd_compr= ession", + default=3D"") =20 parser.add_argument("--dirty-limit", dest=3D"dirty_limit", default= =3DFalse, action=3D"store_true") @@ -166,6 +168,7 @@ def get_scenario(self, args): =20 multifd=3Dargs.multifd, multifd_channels=3Dargs.multifd_channels, + multifd_compression=3Dargs.multifd_compression, =20 dirty_limit=3Dargs.dirty_limit, x_vcpu_dirty_limit_period=3D\ --=20 2.39.1