From patchwork Wed Jun 26 01:35:28 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: mrhines@linux.vnet.ibm.com X-Patchwork-Id: 254529 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [IPv6:2001:4830:134:3::11]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 2369D2C02B6 for ; Wed, 26 Jun 2013 11:38:32 +1000 (EST) Received: from localhost ([::1]:35152 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uregn-0002Kv-Vm for incoming@patchwork.ozlabs.org; Tue, 25 Jun 2013 21:38:30 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:59077) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UreeO-0007EW-Iz for qemu-devel@nongnu.org; Tue, 25 Jun 2013 21:36:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UreeI-0004bV-E5 for qemu-devel@nongnu.org; Tue, 25 Jun 2013 21:36:00 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:41595) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UreeI-0004am-AF for qemu-devel@nongnu.org; Tue, 25 Jun 2013 21:35:54 -0400 Received: from /spool/local by e9.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Hines" RDMA writes happen asynchronously, and thus the performance accounting also needs to be able to occur asynchronously. This allows anybody to call into savevm.c to update both f->pos as well as into arch_init.c to update the acct_info structure with up-to-date values when the RDMA transfer actually completes. Reviewed-by: Juan Quintela Tested-by: Chegu Vinod Tested-by: Michael R. Hines Signed-off-by: Michael R. Hines --- arch_init.c | 12 ++++++++++++ include/migration/migration.h | 2 ++ include/migration/qemu-file.h | 1 + savevm.c | 5 +++++ 4 files changed, 20 insertions(+) diff --git a/arch_init.c b/arch_init.c index a8b91ee..494a14f 100644 --- a/arch_init.c +++ b/arch_init.c @@ -498,6 +498,18 @@ static int ram_save_block(QEMUFile *f, bool last_stage) static uint64_t bytes_transferred; +void acct_update_position(QEMUFile *f, size_t size, bool zero) +{ + uint64_t pages = size / TARGET_PAGE_SIZE; + if (zero) { + acct_info.dup_pages += pages; + } else { + acct_info.norm_pages += pages; + bytes_transferred += size; + qemu_update_position(f, size); + } +} + static ram_addr_t ram_save_remaining(void) { return migration_dirty_pages; diff --git a/include/migration/migration.h b/include/migration/migration.h index e2acec6..0be28a2 100644 --- a/include/migration/migration.h +++ b/include/migration/migration.h @@ -92,6 +92,8 @@ uint64_t ram_bytes_remaining(void); uint64_t ram_bytes_transferred(void); uint64_t ram_bytes_total(void); +void acct_update_position(QEMUFile *f, size_t size, bool zero); + extern SaveVMHandlers savevm_ram_handlers; uint64_t dup_mig_bytes_transferred(void); diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h index 7519464..8fab0dd 100644 --- a/include/migration/qemu-file.h +++ b/include/migration/qemu-file.h @@ -93,6 +93,7 @@ void qemu_put_be32(QEMUFile *f, unsigned int v); void qemu_put_be64(QEMUFile *f, uint64_t v); int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size); int qemu_get_byte(QEMUFile *f); +void qemu_update_position(QEMUFile *f, size_t size); static inline unsigned int qemu_get_ubyte(QEMUFile *f) { diff --git a/savevm.c b/savevm.c index 48cc2a9..9b5577e 100644 --- a/savevm.c +++ b/savevm.c @@ -671,6 +671,11 @@ int qemu_get_fd(QEMUFile *f) return -1; } +void qemu_update_position(QEMUFile *f, size_t size) +{ + f->pos += size; +} + /** Closes the file * * Returns negative error value if any error happened on previous operations or