Seastar: C++ framework for high-performance servers
seastar-project.org
Seastar: C++ framework for high-performance servers
1–10 of 24 posts
Re: Seastar: C++ framework for high-performance servers
#2Errr..... 6.5 million requests per second?
Re: Seastar: C++ framework for high-performance servers
#3Errr..... 6.5 million requests per second?
More like 7 million at 26-ish cores. so ~270000 req/s per core, which is still a lot.
EDIT: here's the writeup https://github.com/cloudius-systems/seastar/wiki/HTTPD-bench...
Re: Seastar: C++ framework for high-performance servers
#4Yup, this is what you can do when you code directly against kernel bypass APIs like DDPK.
Important to note they also use effectively a shared nothing architecture between cores. This makes it very NUMA friendly and further favours network performance because you are able to lock processes/threads to the cores that are directly attached to said network adapter.
The architecture is pretty well known but it's nice to see someone build a framework out of it.
Re: Seastar: C++ framework for high-performance servers
#5Seems like, http problem needs to reframed as C1B(illion) now!
Re: Seastar: C++ framework for high-performance servers
#6Oops, I wanted to do something similar but in C: https://github.com/ademakov/MainMemory
Re: Seastar: C++ framework for high-performance servers
#7Seems like a good one to add to techempower’s benchmarks.
Re: Seastar: C++ framework for high-performance servers
#8Hmmm... wonder if this could go even faster using Cluster-on-Die mode in the new E5-2600v3 CPUs (It splits each CPU into 2 NUMA nodes).
Its also worth noting that the fastest memory configuration is 4x16GB DDR4-2133 DIMMs. Gets you the lowest latency and highest bandwidth according to Intel.
Another note, I see the CPU in the writeup reports as "cpu MHz: 1199.953" - have you turned off C-States?
Re: Seastar: C++ framework for high-performance servers
#9"Applications using Seastar can run on Linux or OSv." Will Seastar support OS X? If No, developer using Mac has to install Linux VM to development.
Re: Seastar: C++ framework for high-performance servers
#10"Applications using Seastar can run on Linux or OSv." Will Seastar support OS X? If No, developer using Mac has to install Linux VM to development.
A lot of their speed comes from special tricks like bypassing the kernel and going direct to hardware (DPDK).
Intel's DPDK doesn't support Mac OS X.
You should probably develop in a VM anyways, or at least with a platform + hardware that supports these features so you can better match what production deployments will be like.
I always cringe a little, for backend systems software, when people develop in an environment completely divorced from their production environment. It just creates headaches.