Re: [OSRM-talk] osrm performance with multiple threads is confusing me
iotop: 0% 2015-11-12 16:53 GMT+01:00 Peter Becker : > Client: different machine over network, Windows 8.1, .Net App with 4 > Cores (Ivy Bridge), Tested with 4, 8, 20 Threads parallel > Server: Hyper-V-Instance, Haswell 4 Core's, 8 GB RAM, Ubuntu 14.04. > LTS, Samsung 512 GB Pro SSD; + german map file > > german.maps.osrm is placed on ssd and load with datastore in shared memory > > $ osrm-route --shared-memory=yes -t 1 -p 5000 > CPU-Usage: > Core 1: 0% > Core 2: ~90%; > Core 3: 0%; > Core 4: ~5%; > Routes (2 Points) per Second: ~500 > > -- > > $ osrm-route --shared-memory=yes -t 2 -p 5000 > CPU-Usage: > Core 1: ~33% > Core 2: ~33%; > Core 3: ~54%; > Core 4: ~5%; > Routes (2 Points) per Second: ~333 > > -- > > $ osrm-route --shared-memory=yes -t 1 -p 5000 > $ osrm-route --shared-memory=yes -t 1 -p 5001 > CPU-Usage: > Core 1: ~33% > Core 2: ~33%; > Core 3: ~54%; > Core 4: ~5%; > Routes (2 Points) per Second: ~333 > (same result) ___ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
Re: [OSRM-talk] osrm performance with multiple threads is confusing me
Client: different machine over network, Windows 8.1, .Net App with 4 Cores (Ivy Bridge), Tested with 4, 8, 20 Threads parallel Server: Hyper-V-Instance, Haswell 4 Core's, 8 GB RAM, Ubuntu 14.04. LTS, Samsung 512 GB Pro SSD; + german map file german.maps.osrm is placed on ssd and load with datastore in shared memory $ osrm-route --shared-memory=yes -t 1 -p 5000 CPU-Usage: Core 1: 0% Core 2: ~90%; Core 3: 0%; Core 4: ~5%; Routes (2 Points) per Second: ~500 -- $ osrm-route --shared-memory=yes -t 2 -p 5000 CPU-Usage: Core 1: ~33% Core 2: ~33%; Core 3: ~54%; Core 4: ~5%; Routes (2 Points) per Second: ~333 -- $ osrm-route --shared-memory=yes -t 1 -p 5000 $ osrm-route --shared-memory=yes -t 1 -p 5001 CPU-Usage: Core 1: ~33% Core 2: ~33%; Core 3: ~54%; Core 4: ~5%; Routes (2 Points) per Second: ~333 (same result) ___ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
Re: [OSRM-talk] osrm performance with multiple threads is confusing me
Query performance is also limited by disk performance as part of the RTree that is used for the nearest neighbor lookup is on disk. You might want to check your IO stats as well. On Thu, Nov 12, 2015 at 3:55 PM, Daniel Patterson wrote: > Hi Peter, > > How are you performing the tests? From the same machine, or from another > machine over the network? > > OSRM responses are usually around 5-20ms. If you're doing some analysis of > the results, on the same machine, > it's possible that your tests themselves are CPU limited. Can you give > more info on your testing setup? > > daniel > >> On Nov 12, 2015, at 5:59 AM, Peter Becker wrote: >> >> I'm a little bit confused. >> >> i have load the map in memory with osrm-datastore und run one instance with >> >> "osrm-route --shared-memory=yes -t 1 -p 5000" >> >> with only one thread, one cpu-core raise up tzo 90% and i get ~500 >> routes per second >> >> if i set thread count to more then 2 or more >> >> "osrm-route --shared-memory=yes -t 2 -p 5000" >> >> 3 cpu-cores are raise up to 30-50% usage and i only get ~333 routes per >> second. >> >> so i also try run 2 instances with one core: >> >> "osrm-route --shared-memory=yes -t 1 -p 5000" >> "osrm-route --shared-memory=yes -t 1 -p 5001" >> >> and use ngnix as load-balancer .. it dosn't make a difference to one >> instance with 2 or more threads >> >> what is wrong? with "-t 2" or 2 instances i expect that 2 cpu-cores >> are at 100% and i get more routes per second as with "-t 1". >> >> ___ >> OSRM-talk mailing list >> OSRM-talk@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/osrm-talk > > > ___ > OSRM-talk mailing list > OSRM-talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/osrm-talk ___ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
Re: [OSRM-talk] osrm performance with multiple threads is confusing me
Hi Peter, How are you performing the tests? From the same machine, or from another machine over the network? OSRM responses are usually around 5-20ms. If you're doing some analysis of the results, on the same machine, it's possible that your tests themselves are CPU limited. Can you give more info on your testing setup? daniel > On Nov 12, 2015, at 5:59 AM, Peter Becker wrote: > > I'm a little bit confused. > > i have load the map in memory with osrm-datastore und run one instance with > > "osrm-route --shared-memory=yes -t 1 -p 5000" > > with only one thread, one cpu-core raise up tzo 90% and i get ~500 > routes per second > > if i set thread count to more then 2 or more > > "osrm-route --shared-memory=yes -t 2 -p 5000" > > 3 cpu-cores are raise up to 30-50% usage and i only get ~333 routes per > second. > > so i also try run 2 instances with one core: > > "osrm-route --shared-memory=yes -t 1 -p 5000" > "osrm-route --shared-memory=yes -t 1 -p 5001" > > and use ngnix as load-balancer .. it dosn't make a difference to one > instance with 2 or more threads > > what is wrong? with "-t 2" or 2 instances i expect that 2 cpu-cores > are at 100% and i get more routes per second as with "-t 1". > > ___ > OSRM-talk mailing list > OSRM-talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/osrm-talk ___ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
[OSRM-talk] osrm performance with multiple threads is confusing me
I'm a little bit confused. i have load the map in memory with osrm-datastore und run one instance with "osrm-route --shared-memory=yes -t 1 -p 5000" with only one thread, one cpu-core raise up tzo 90% and i get ~500 routes per second if i set thread count to more then 2 or more "osrm-route --shared-memory=yes -t 2 -p 5000" 3 cpu-cores are raise up to 30-50% usage and i only get ~333 routes per second. so i also try run 2 instances with one core: "osrm-route --shared-memory=yes -t 1 -p 5000" "osrm-route --shared-memory=yes -t 1 -p 5001" and use ngnix as load-balancer .. it dosn't make a difference to one instance with 2 or more threads what is wrong? with "-t 2" or 2 instances i expect that 2 cpu-cores are at 100% and i get more routes per second as with "-t 1". ___ OSRM-talk mailing list OSRM-talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/osrm-talk
