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bh=uW1Z+v64y+umSQ32w8EgxYbosCFqhn1os2yU1vJh/YQ=; b=WbAgwawC4W44ugeWGbd3USwCEn14NUjT8gCkCnxMBIQCgla4rCgou1GomCR+ok/ogY27og uCeR36i0MsIMxNKINDpuDIs+0Wp6CbyZalGa6JeqKVzq+5zMmEa/Er9EESnMnFwiquFMU1 gXxGGT4WTzUuHDZ6uo59bMm2Ku8kysQ= X-MC-Unique: c8otk8lIMhC-Sx9GIx9kmw-1 From: Juan Quintela To: qemu-devel@nongnu.org Cc: Kevin Wolf , libvir-list@redhat.com, Stefan Hajnoczi , Fam Zheng , Hanna Reitz , Li Zhijian , Peter Xu , Leonardo Bras , Juan Quintela , Eric Blake , Markus Armbruster , Hailiang Zhang , qemu-block@nongnu.org, Fabiano Rosas , Lukas Straub Subject: [PULL 13/38] migration: Create compress_update_rates() Date: Tue, 31 Oct 2023 10:01:17 +0100 Message-ID: <20231031090142.13122-14-quintela@redhat.com> In-Reply-To: <20231031090142.13122-1-quintela@redhat.com> References: <20231031090142.13122-1-quintela@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.7 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=170.10.133.124; envelope-from=quintela@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -25 X-Spam_score: -2.6 X-Spam_bar: -- X-Spam_report: (-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.483, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 @redhat.com) X-ZM-MESSAGEID: 1698743031139100003 Content-Type: text/plain; charset="utf-8" So we can move more compression_counters stuff to ram-compress.c. Create compression_counters struct to add the stuff that was on MigrationState. Reviewed-by: Lukas Straub Reviewed-by: Fabiano Rosas Signed-off-by: Juan Quintela Message-ID: <20231019110724.15324-8-quintela@redhat.com> --- migration/ram-compress.h | 1 + migration/ram.h | 1 - migration/ram-compress.c | 42 +++++++++++++++++++++++++++++++++++++++- migration/ram.c | 29 +-------------------------- 4 files changed, 43 insertions(+), 30 deletions(-) diff --git a/migration/ram-compress.h b/migration/ram-compress.h index b228640092..76dacd3ec7 100644 --- a/migration/ram-compress.h +++ b/migration/ram-compress.h @@ -71,5 +71,6 @@ void decompress_data_with_multi_threads(QEMUFile *f, void= *host, int len); void populate_compress(MigrationInfo *info); uint64_t ram_compressed_pages(void); void update_compress_thread_counts(const CompressParam *param, int bytes_x= mit); +void compress_update_rates(uint64_t page_count); =20 #endif diff --git a/migration/ram.h b/migration/ram.h index 3f724b2f02..9f3ad1ee81 100644 --- a/migration/ram.h +++ b/migration/ram.h @@ -34,7 +34,6 @@ #include "io/channel.h" =20 extern XBZRLECacheStats xbzrle_counters; -extern CompressionStats compression_counters; =20 /* Should be holding either ram_list.mutex, or the RCU lock. */ #define RAMBLOCK_FOREACH_NOT_IGNORED(block) \ diff --git a/migration/ram-compress.c b/migration/ram-compress.c index f56e1f8e69..af42cab0fe 100644 --- a/migration/ram-compress.c +++ b/migration/ram-compress.c @@ -41,7 +41,20 @@ #include "ram.h" #include "migration-stats.h" =20 -CompressionStats compression_counters; +static struct { + int64_t pages; + int64_t busy; + double busy_rate; + int64_t compressed_size; + double compression_rate; + /* compression statistics since the beginning of the period */ + /* amount of count that no free thread to compress data */ + uint64_t compress_thread_busy_prev; + /* amount bytes after compression */ + uint64_t compressed_size_prev; + /* amount of compressed pages */ + uint64_t compress_pages_prev; +} compression_counters; =20 static CompressParam *comp_param; static QemuThread *compress_threads; @@ -518,3 +531,30 @@ void update_compress_thread_counts(const CompressParam= *param, int bytes_xmit) compression_counters.pages++; } =20 +void compress_update_rates(uint64_t page_count) +{ + if (!migrate_compress()) { + return; + } + compression_counters.busy_rate =3D (double)(compression_counters.busy - + compression_counters.compress_thread_busy_prev) / page_count; + compression_counters.compress_thread_busy_prev =3D + compression_counters.busy; + + double compressed_size =3D compression_counters.compressed_size - + compression_counters.compressed_size_prev; + if (compressed_size) { + double uncompressed_size =3D (compression_counters.pages - + compression_counters.compress_pages_pr= ev) * + qemu_target_page_size(); + + /* Compression-Ratio =3D Uncompressed-size / Compressed-size */ + compression_counters.compression_rate =3D + uncompressed_size / compressed_size; + + compression_counters.compress_pages_prev =3D + compression_counters.pages; + compression_counters.compressed_size_prev =3D + compression_counters.compressed_size; + } +} diff --git a/migration/ram.c b/migration/ram.c index 46209388ec..f7daf2226e 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -369,13 +369,6 @@ struct RAMState { bool xbzrle_started; /* Are we on the last stage of migration */ bool last_stage; - /* compression statistics since the beginning of the period */ - /* amount of count that no free thread to compress data */ - uint64_t compress_thread_busy_prev; - /* amount bytes after compression */ - uint64_t compressed_size_prev; - /* amount of compressed pages */ - uint64_t compress_pages_prev; =20 /* total handled target pages at the beginning of period */ uint64_t target_page_count_prev; @@ -945,7 +938,6 @@ uint64_t ram_get_total_transferred_pages(void) static void migration_update_rates(RAMState *rs, int64_t end_time) { uint64_t page_count =3D rs->target_page_count - rs->target_page_count_= prev; - double compressed_size; =20 /* calculate period counters */ stat64_set(&mig_stats.dirty_pages_rate, @@ -973,26 +965,7 @@ static void migration_update_rates(RAMState *rs, int64= _t end_time) rs->xbzrle_pages_prev =3D xbzrle_counters.pages; rs->xbzrle_bytes_prev =3D xbzrle_counters.bytes; } - - if (migrate_compress()) { - compression_counters.busy_rate =3D (double)(compression_counters.b= usy - - rs->compress_thread_busy_prev) / page_count; - rs->compress_thread_busy_prev =3D compression_counters.busy; - - compressed_size =3D compression_counters.compressed_size - - rs->compressed_size_prev; - if (compressed_size) { - double uncompressed_size =3D (compression_counters.pages - - rs->compress_pages_prev) * TARGET_PAGE= _SIZE; - - /* Compression-Ratio =3D Uncompressed-size / Compressed-size */ - compression_counters.compression_rate =3D - uncompressed_size / compressed_siz= e; - - rs->compress_pages_prev =3D compression_counters.pages; - rs->compressed_size_prev =3D compression_counters.compressed_s= ize; - } - } + compress_update_rates(page_count); } =20 /* --=20 2.41.0