{"id":706,"date":"2006-05-31T01:33:09","date_gmt":"2006-05-30T15:33:09","guid":{"rendered":"http:\/\/www.flamingspork.com\/blog\/2006\/05\/31\/davem-on-ingos-smp-lock-validator\/"},"modified":"2014-10-08T09:20:22","modified_gmt":"2014-10-07T23:20:22","slug":"davem-on-ingos-smp-lock-validator","status":"publish","type":"post","link":"https:\/\/www.flamingspork.com\/blog\/2006\/05\/31\/davem-on-ingos-smp-lock-validator\/","title":{"rendered":"DaveM on Ingo’s SMP lock validator"},"content":{"rendered":"

DaveM talks about Ingo’s new SMP lock validator for linux kernel<\/a><\/p>\n

A note reminding me to go take a look and see what can be ripped out and placed into various bits of MySQL and NDB. Ideally, of course, it could be turned into a LD_PRELOAD for pthread mutexes.<\/p>\n

Anybody who wants to look deeper into it before I wake up again is welcome to (and tell me what they find)<\/p>\n","protected":false},"excerpt":{"rendered":"

DaveM talks about Ingo’s new SMP lock validator for linux kernel A note reminding me to go take a look and see what can be ripped out and placed into various bits of MySQL and NDB. Ideally, of course, it … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[1,8,14],"tags":[633,54,130],"class_list":["post-706","post","type-post","status-publish","format-standard","hentry","category-general","category-linux-kernel","category-mysql","tag-code","tag-ndb","tag-test"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5a6n8-bo","jetpack-related-posts":[{"id":1639,"url":"https:\/\/www.flamingspork.com\/blog\/2009\/05\/15\/ndb-kernel-size-over-releases\/","url_meta":{"origin":706,"position":0},"title":"NDB Kernel size over releases","author":"Stewart Smith","date":"2009-05-15","format":false,"excerpt":"So Jonas pointed out that the NDB kernel hasn't changed too much in size over releases. Let's have a look: In fact, the size went down slightly from 4.1 to 5.0. In this, 6.4 and 7.0 are the same thing but appear twice for completeness. You can see the raw\u2026","rel":"","context":"In "mysql"","block_context":{"text":"mysql","link":"https:\/\/www.flamingspork.com\/blog\/category\/work-et-al\/mysql\/"},"img":{"alt_text":"","src":"http:\/\/spreadsheets.google.com\/pub?key=rb3gswEGOF8WZlKMJtLr7ug&oid=1&output=image","width":350,"height":200,"srcset":"http:\/\/spreadsheets.google.com\/pub?key=rb3gswEGOF8WZlKMJtLr7ug&oid=1&output=image 1x, http:\/\/spreadsheets.google.com\/pub?key=rb3gswEGOF8WZlKMJtLr7ug&oid=1&output=image 1.5x"},"classes":[]},{"id":759,"url":"https:\/\/www.flamingspork.com\/blog\/2006\/11\/13\/disk-allocation-xfs-ndb-disk-data-and-more\/","url_meta":{"origin":706,"position":1},"title":"Disk allocation, XFS, NDB Disk Data and more…","author":"Stewart Smith","date":"2006-11-13","format":false,"excerpt":"I've talked about disk space allocation previously, mainly revolving around XFS (namely because it's what I use, a sensible choice for large file systems and large files and has a nice suite of tools for digging into what's going on).Most people write software that just calls write(2) (or libc things\u2026","rel":"","context":"In "linux-kernel"","block_context":{"text":"linux-kernel","link":"https:\/\/www.flamingspork.com\/blog\/category\/linux-kernel\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1229,"url":"https:\/\/www.flamingspork.com\/blog\/2008\/10\/14\/mysql-cluster-ndb-on-win32-progress\/","url_meta":{"origin":706,"position":2},"title":"MySQL Cluster (NDB) on Win32 progress","author":"Stewart Smith","date":"2008-10-14","format":false,"excerpt":"Many things have been happenning in the land of NDB on Win32 as of late. I've fixed about 700 compiler warnings (some of which were real bugs) leaving about 161 to go on Win32 (VS2003). We're getting a few more warnings on Win64 (some of which look merely semantic, while\u2026","rel":"","context":"In "General"","block_context":{"text":"General","link":"https:\/\/www.flamingspork.com\/blog\/category\/general\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3257,"url":"https:\/\/www.flamingspork.com\/blog\/2013\/03\/13\/which-is-bigger-mysql-or-postgresql\/","url_meta":{"origin":706,"position":3},"title":"Which is bigger: MySQL or PostgreSQL?","author":"Stewart Smith","date":"2013-03-13","format":false,"excerpt":"From my previous posts, we have some numbers (excluding NDB) for the size of MySQL, so what about PostgreSQL? Here, I used PostgreSQL git trunk and classing things in the contrib\/ directory as plugins. I put the number of lines of code in the src\/backend\/storage directory down as storage engines\u2026","rel":"","context":"In "code"","block_context":{"text":"code","link":"https:\/\/www.flamingspork.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3237,"url":"https:\/\/www.flamingspork.com\/blog\/2013\/03\/08\/mysql-modularity-are-we-there-yet\/","url_meta":{"origin":706,"position":4},"title":"MySQL modularity, are we there yet?","author":"Stewart Smith","date":"2013-03-08","format":false,"excerpt":"MySQL is now over four times the size than it was with MySQL 3.23. This has not come in the shape of plugins. Have we improved modularity over time? I decided to take LoC count for plugins and storage engines (in the case of Drizzle, memory, myisam and innobase are\u2026","rel":"","context":"In "code"","block_context":{"text":"code","link":"https:\/\/www.flamingspork.com\/blog\/category\/code\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":3884,"url":"https:\/\/www.flamingspork.com\/blog\/2014\/10\/14\/mysql-5-7-5-on-power-thread-priority\/","url_meta":{"origin":706,"position":5},"title":"MySQL 5.7.5 on POWER – thread priority","author":"Stewart Smith","date":"2014-10-14","format":false,"excerpt":"Good news everyone! MySQL 5.7.5 is out with a bunch more patches for running well on POWER in the tree. I haven't yet gone and tried it all out, but since I'm me, I look at bugs database and git\/bzr history first. On Intel CPUs, when you're spinning on a\u2026","rel":"","context":"In "IBM"","block_context":{"text":"IBM","link":"https:\/\/www.flamingspork.com\/blog\/category\/work-et-al\/ibm-work-et-al\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/posts\/706","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/comments?post=706"}],"version-history":[{"count":2,"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/posts\/706\/revisions"}],"predecessor-version":[{"id":3871,"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/posts\/706\/revisions\/3871"}],"wp:attachment":[{"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/media?parent=706"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/categories?post=706"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.flamingspork.com\/blog\/wp-json\/wp\/v2\/tags?post=706"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}