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[130.117.225.111]) by mx.google.com with ESMTPS id ffacd0b85a97d-48b029d0fdfsi998046f8f.166.2026.09.30.00.34.52 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Sep 2026 00:34:52 -0700 (PDT) Received-SPF: pass (google.com: domain of kui.liu@virtuozzo.com designates 130.117.225.111 as permitted sender) client-ip=130.117.225.111; Authentication-Results: mx.google.com; dkim=pass header.i=@virtuozzo.com header.s=relay header.b=poLaOoyL; spf=pass (google.com: domain of kui.liu@virtuozzo.com designates 130.117.225.111 as permitted sender) smtp.mailfrom=kui.liu@virtuozzo.com; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=virtuozzo.com DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=virtuozzo.com; s=relay; h=Content-Type:MIME-Version:Message-Id:Date:Subject :From; bh=jiuBq3JzHLrKc5bDtbdetVEJSI9RvxSRgyA0ZMyZl/A=; b=poLaOoyLRPP7WJehiJR Pht47rBMNxJgIf4zwPDwVsY7oP3EwEWXryj5c2NeL078YBrmSle9KK6MbnsdnsSWc+YnaJ23OIFOT 4w9OHoHdhwm/wo5aBv603kGVOyQ2mbErn6U0f6/ICU9hoBjkwpwQMOwmCR/BxJjZ+ekSCEztabo5+ L7RxRji8DjSYoStN+z8G/cP5YnR6NsG/aww/bPtqtDZlAAC8bUPcdn65/s0iPV2MIzbQB12zQ5mkF +Ljsyy5z5Hf37WkBALs2Fx3r1Aq74VBT7QrOYkFLLCYDaXuVvPnnxX/8Y9BMOsmWYc7FVXTiKoqMR TF+NQCpe94Fp4Rg==; Received: from ch-vpn.virtuozzo.com ([130.117.225.6] helo=LK-MBP.local) by relay.virtuozzo.com with esmtp (Exim 4.96) (envelope-from ) id 1xBomy-00FyU7-04; Wed, 30 Sep 2026 09:34:51 +0200 From: Liu Kui Date: Wed, 30 Sep 2026 15:34:30 +0800 Message-Id: <20260930-sockio-refactor-8-1-v1-0-806348b9eb26@virtuozzo.com> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yWMQQqDQAwAvyI5N5Jdqaz9SvGgMWosuGVjiyD+v dv2OAwzB5gkFYNbcUCSt5rGNYO7FMBzt06COmQGT76mpiK0yA+NmGTseIsJAzqsyQ8NBXHXiiG Xz2x1/13vMLNiKB20f2GvfhHevk84zw+Hh3d5gAAAAA== X-Change-ID: 20260930-sockio-refactor-8-1-602d908e153c To: Konstantin Khorenko X-Mailer: b4 0.16.0 X-OZ-Fwd: true Cc: azaitsev@virtuozzo.com, devel@openvz.org, Liu Kui Subject: [Devel] [PATCH hci-8.1 0/3] fs/fuse kio: cut per-4k-page sendmsg/recvmsg calls in the sockio path X-BeenThere: devel@openvz.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: OpenVZ development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: devel-bounces@openvz.org Errors-To: devel-bounces@openvz.org The sockio transport submits one 4k segment per sock_sendmsg() / kernel_recvmsg() call, so a 1M chunk costs up to 256 socket calls each way. Rework both paths to hand the whole iov_iter to the socket in one call, and teach pcs_umem to keep hugepage-backed mappings as single 2M chunks so the bvec builder stops splitting them into 4k bio_vecs. https://virtuozzo.atlassian.net/browse/VSTOR-142166 https://virtuozzo.atlassian.net/browse/VSTOR-142167 --- Liu Kui (3): fs/fuse kio: teach pcs_umem about hugepage-backed mappings fs/fuse kio: refactor transmit path in pcs_sockio_send() fs/fuse kio: refactor receive path in pcs_sockio_recv() fs/fuse/kio/pcs/pcs_krpc.c | 9 +- fs/fuse/kio/pcs/pcs_mr.c | 84 ++++++++++--- fs/fuse/kio/pcs/pcs_mr.h | 45 ++++++- fs/fuse/kio/pcs/pcs_sock_io.c | 287 +++++++++++++++++++----------------------- fs/fuse/kio/pcs/pcs_sock_io.h | 1 + 5 files changed, 245 insertions(+), 181 deletions(-) --- base-commit: ca54f152160587a74ff17cb52feef16f7b9d4e2b change-id: 20260930-sockio-refactor-8-1-602d908e153c Best regards, -- Liu Kui _______________________________________________ Devel mailing list Devel@openvz.org https://lists.openvz.org/mailman/listinfo/devel