Re: [Sks-devel] patch-36 - severe slowdown

[Yaron Minsky]

Interesting.  This should be quite fixable.  I can read in the hashes
from the keyid database, then sort, and then insert.  That should
speed things up enough.

The other thing is that you might want to increase the cache size on
the ptree.  THere's a flag for doing that.

y

On 4/22/05, Jason Harris <address@hidden> wrote:
> 
> At least for me, patch-36:
> 
>   address@hidden/sks--mainline--1.0--patch-36
>       Build ptree using keyid database instead of key (makes it faster)
> 
> causes a severe slowdown, a factor of 3X or more.  I suspect this is
> related to the unsorted order of SKS hashes in the keyid (v. key) db.
> 
> Yaron, have you read /usr/local/share/doc/db43/ref/am_misc/partial.html
> (also online via http://www.sleepycat.com/docs/ref/am_misc/partial.html )
> and tried fetching as little of each record in the key db as possible?
> 
> So, I'm now running sks-1.0.9 with these patches:
> 
>   address@hidden/sks--mainline--1.0--patch-33
>       2004-10-30 19:34:55 GMT      Yaron Minsky <address@hidden>
>       Fixed bug insufficiently strict parsing of public key packets
>   address@hidden/sks--mainline--1.0--patch-34
>       2004-12-13 17:04:14 GMT      Yaron Minsky <address@hidden>
>       Update to logfile creation, fixed malformed hash error message
>   address@hidden/sks--mainline--1.0--patch-37
>       2005-01-19 17:23:16 GMT      Yaron Minsky <address@hidden>
>       Modified basedir functionality.
>   address@hidden/sks--mainline--1.0--patch-38
>       2005-01-19 15:02:11 GMT      Yaron Minsky <address@hidden>
>       Patch fixing membership bug (from Marco Nenciarini)
> 
> but without these:
> 
>   address@hidden/sks--mainline--1.0--patch-35
>       Updated SKS to be compatible with 3.08 and Berkeley DB 4.2
>   address@hidden/sks--mainline--1.0--patch-36
>       Build ptree using keyid database instead of key (makes it faster)
> 
> using db-4.3.27 and ocaml-3.07.
> 
> --
> Jason Harris           |  NIC:  JH329, PGP:  This _is_ PGP-signed, isn't it?
> address@hidden _|_ web:  http://keyserver.kjsl.com/~jharris/
>           Got photons?   (TM), (C) 2004
> 
> 
> _______________________________________________
> Sks-devel mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/sks-devel
> 
> 
> 
>