Readbufferextended
Buffer buffer = ReadBufferExtended (rel, MAIN_FORKNUM, 0, RBM_NORMAL, bstrategy); Page page = BufferGetPage (buffer); BTMetaPageData *metad = BTPageGetMeta (page); indexStat. version = metad-> btm_version; indexStat. level = metad-> btm_level; indexStat. root_blkno = metad-> btm_root; ReleaseBuffer (buffer);} /*-- init counters -- */ indexStat ... WebC++ (Cpp) vm_extend - 3 examples found. These are the top rated real world C++ (Cpp) examples of vm_extend extracted from open source projects. You can rate examples to help us improve the quality of examples.
Readbufferextended
Did you know?
WebJul 14, 2024 · Summary. The postgres planner optimises for getting 100% of the rows for execution. This is different for cursors, which are optimised for getting the first 10% of rows, which can lead to different execution plans and different latency if you do not want 10% of the rows as fast as possible, but 100% of the rows as fast as possible. WebApr 22, 2014 · There have been some odd behaviors on one of my production facing postgres servers. version info from postgres: PostgreSQL 9.1.9 on x86_64-unknown-linux-gnu, compiled by gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-4), 64-bit. The symptom: The database machine (running postgres 9.1.9 on CentOS 6.4) is running a low utilization …
WebC++ (Cpp) vm_extend - 3 examples found. These are the top rated real world C++ (Cpp) examples of vm_extend extracted from open source projects. You can rate examples to … Web1) Oh man, computer stuff is hard. A small #postgresql thread: After spending weeks optimizing an ETL process to be 3x faster, an index-only scan got 3x slower compared to a replica that hadn't undergone the new ETL process. Main clue: (shared) buffer hits were up …
WebMay 18, 2024 · 3 0xa4ac34 postgres ReadBufferExtended (bufmgr.c:341) 4 0x7003ab postgres RelationGetBufferForTuple (hio.c:90) 5 0x6fab53 postgres heap_multi_insert … WebTHE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS. * SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS. * input arg, for each function. * in the future release. * used by pgstatindex (). * used by pgstatginindex (). * used by pgstathashindex (). * these functions could be called by any user.
WebJan 22, 2010 · Every now and then, I can see a call to ReadBufferExtended from repair_frag(), so the CPU-intensive part does eventually find what it's looking for, but I'm hopeful that this could somehow be done more efficiently and this process could be …
Web* ReadBuffer () -- find or create a buffer holding the requested page, * and pin it so that no one can destroy it while this process * is using it. * * ReleaseBuffer () -- unpin a buffer * * MarkBufferDirty () -- mark a pinned buffer's contents as "dirty". * The disk write is delayed until buffer replacement or checkpoint. * gps will be named and shamedWebC++ (Cpp) ginVacuumEntryPage - 2 examples found. These are the top rated real world C++ (Cpp) examples of ginVacuumEntryPage extracted from open source projects. You can … gps west marineWebThread: Stats collector's idx_blks_hit value is highly misleading in practice gps winceWebSep 5, 2024 · The FileReader API in HTML5 allows web browsers to access user files without uploading the files to the web servers. It not only lightens the load of web server but also … gps weather mapWebFeb 26, 2024 · I asked this and got some thoughts from Robert in [1], but I still don't really get it. When a new page is needed during the hash index build, why can't _hash_expandtable() just call ReadBufferExtended() with P_NEW instead of _hash_getnewbuf()? Does it have to do with the BUCKET_TO_BLKNO mapping? gpswillyWebMar 25, 2024 · > before calling ReadBufferExtended? Or am I confused and that's not > possible for some reason? Note that this is using P_NEW. I.e. we don't know the buffer location yet. Greetings, Andres Freund. In response to. Re: hio.c does visibilitymap_pin()/IO while holding buffer lock at 2024-03-25 13:34:25 from Tomas Vondra; gps w farming simulator 22 link w opisieWebFor ReadBufferExtended hook, yes, Readbuffer with P_NEW will then call smgrextend. But in smgrextend, we cannot get the oid of a relation, and it will take some time to get the oid … gps wilhelmshaven duales studium