[Python-Dev] Buildbots for trunk are all red
Jesus Cea
jcea at argo.es
Wed Mar 5 00:59:40 CET 2008
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Christian Heimes wrote:
| More than 5 years ago Zope Corp was working on a Berkeley DB backend for
| ZODB. It was more of a marketing decision to show large companies that
| ZODB is using a well known database instead of a self made one. The
| project failed due to problems with the Berkeley db. I vaguely remember
| something with transactions and speed ...
BerkeleyDB transaction performance, like any other ACID database, is
limited to disk performance (unless you have a non volatile ram, of
course). Using ext2 and such, you are happy if you get 30-50
transactions per second. Using nice Solaris ZFS, I do a transaction per
rotation; that is, 120 transactions per second with a consumer level
7200RPM disk.
PS: Until Oracle takeover, BerkeleyDB was the heart of MySQL
transactional engine. I don't like mysql, but not for its use of
BerkeleyDB :-).
- --
Jesus Cea Avion _/_/ _/_/_/ _/_/_/
jcea at argo.es http://www.argo.es/~jcea/ _/_/ _/_/ _/_/ _/_/ _/_/
jabber / xmpp:jcea at jabber.org _/_/ _/_/ _/_/_/_/_/
~ _/_/ _/_/ _/_/ _/_/ _/_/
"Things are not so easy" _/_/ _/_/ _/_/ _/_/ _/_/ _/_/
"My name is Dump, Core Dump" _/_/_/ _/_/_/ _/_/ _/_/
"El amor es poner tu felicidad en la felicidad de otro" - Leibniz
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