How Datacenters can be more Efficient.pdf

1、A:Precision SyncHow Datacenters Can Be More EfficientEdgeHow Datacenters Can Be More EfficientAnand Ram,VP Bus Dev,CalnexToday Youll HearHow precision sync can help datacenters be more efficientAbout real-world deployments and modelsWhat you need to look out forHow this could make you even more$Why

2、Precision Sync Delivers Efficiency1,000,000 computers compute2 computers compute If all the computers are syncd,they can compute and make decisions faster The greater the precision of sync,the faster the decisions can be made SPEED&CAPACITY=EFFICIENCYDont Just Take My Wordhttps:/ Precision Sync Deli

3、vers Efficiency1,000,000 computers compute2 computers compute Man-made 20ms delay ensures no computer thinks its getting data from the future Precisely syncd computers mean this 20ms delay can be dropped EFFICIENCY20ms delayIts Really HappeningGNSSOpen Compute Project(OCP)Time Card project is an exa

4、mple of delivering microsecond accuracy to any x86 machine with a HW-timestamp enabled NIC via PTPDatacenter PTP Profile developed within OCPWidely deployed at Meta,others to comeThe OCP is CentralDatacenter PTP Profile No.1 Developed at OCP Network Fabric LayerTime Reference LayerServer LayerAccura

5、cy is superior but needs to be verifiedMoving from 100ms accuracy to 1s accuracy timing and synchronisation becoming more critical for DatacentersMoving from NTPd to more precise NTP and PTPFor example,from Datacenter PTP Profile No.1 Model 1(OCP):The maximum time error between any two OCs must be w

6、ithin 5 sThe maximum time error between a GM and any OCs must be within 2.5 sThe maximum time error generated by a TC must be within 100 nsEtc.100ms accuracy didnt need to be verified.Testing is essential to validate s accuracyAccuracy Enab