Re: [Neo4j] Benchmarking Neo4j with Rtree index -v- PostgreSQL/PostGIS (Peter Neubauer) (Peter Neubauer)
Peter As you suggested, I rerun the searches without closing the db. On the 2nd iteration, the search times dropped by 66% and leveled-off after that. Unfortunately I don't understand your suggestion: 'You can even warm up the OS file caches by doing dd nodestore.id /dev/null for all store files a couple of times'. I can't find the command or executable dd. I'm running on Windows 7 and what you suggest looks to me like a Unix or Linux command. Rgds Dave ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Benchmarking Neo4j with Rtree index -v- PostgreSQL/PostGIS (Peter Neubauer) (Peter Neubauer)
Not sure if this will work dd for windows: http://www.chrysocome.net/dd command (if = input file, of = output file): dd if=nodestore.id of=/dev/null On Tue, Feb 1, 2011 at 11:52 AM, Dave Hesketh dave.hesk...@compassengine.com wrote: Peter As you suggested, I rerun the searches without closing the db. On the 2nd iteration, the search times dropped by 66% and leveled-off after that. Unfortunately I don't understand your suggestion: 'You can even warm up the OS file caches by doing dd nodestore.id /dev/null for all store files a couple of times'. I can't find the command or executable dd. I'm running on Windows 7 and what you suggest looks to me like a Unix or Linux command. Rgds Dave ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
Re: [Neo4j] Benchmarking Neo4j with Rtree index -v- PostgreSQL/PostGIS (Peter Neubauer) (Peter Neubauer)
we'll have to benchmark it on windows. from what I've experienced windows file caches are broken anyway Michael Sent from my iBrick4 Am 01.02.2011 um 19:04 schrieb Max De Marzi Jr. maxdema...@gmail.com: Not sure if this will work dd for windows: http://www.chrysocome.net/dd command (if = input file, of = output file): dd if=nodestore.id of=/dev/null On Tue, Feb 1, 2011 at 11:52 AM, Dave Hesketh dave.hesk...@compassengine.com wrote: Peter As you suggested, I rerun the searches without closing the db. On the 2nd iteration, the search times dropped by 66% and leveled-off after that. Unfortunately I don't understand your suggestion: 'You can even warm up the OS file caches by doing dd nodestore.id /dev/null for all store files a couple of times'. I can't find the command or executable dd. I'm running on Windows 7 and what you suggest looks to me like a Unix or Linux command. Rgds Dave ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user ___ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
