What metrics are considered when Acropolis Dynamic Scheduling makes a migration decision on AHV related to CPU usage? Does ADS consider only CPU usage on the Host? Or does ADS take into consideration other VM or Host metrics such as CPU Ready, Co Stop, and/or Steal Time?

Hello @Shaun.SparksADS monitors the following resources:VM CPU Utilization: Total CPU usage of each guest VM.Storage CPU Utilization: Storage controller (Stargate) CPU usage per VM or iSCSI targetADS does not monitor memory and networking usage.How Acropolis Dynamic Scheduling WorksLazan is the ADS service in an AHV cluster. AOS selects a Lazan manager and Lazan solver among the hosts in the cluster to effectively manage ADS operations.ADS performs the following tasks to resolve compute and storage I/O contentions or hotspots:The Lazan manager gathers statistics from the components it monitors.The Lazan solver (runner) checks the statistics for potential anomalies and determines how to resolve them, if possible.The Lazan manager invokes the tasks (for example, VM migrations) to resolve the situation.Note:During migration, a VM consumes resources on both the source and destination hosts as the High Availability (HA) reservation algorithm must protect the VM on both hosts. If a migration fails due to lack of free resources, turn off some VMs so that migration is possible.If a problem is detected and ADS cannot solve the issue (for example, because of limited CPU or storage resources), the migration plan might fail. In these cases, an alert is generated. Monitor these alerts from theAlertsdashboard of the Prism Element web console and take necessary remedial actions.If the host, firmware, or AOS upgrade is in progress and if any resource contention occurs during the upgrade period, ADS does not perform any resource contention rebalancing.When Is a Hotspot Detected?Lazan runs every 15 minutes and analyzes the resource usage for at least that period of time. If the resource utilization of an AHV host remains >85% for the span of 15 minutes, Lazan triggers migration tasks to remove the hotspot.Note:For a storage hotspot, ADS looks at the last 40 minutes of data and uses a smoothing algorithm to use the most recent data. For a CPU hotspot, ADS looks at the last 10 minutes of data only, that is, the average CPU usage over the last 10 minutes.Following are the possible reasons if there is an obvious hotspot, but the VMs did not migrate:Lazan cannot resolve a hotspot. For example:If there is a huge VM (16 vCPUs) at 100% usage, and accounts for 75% of the AHV host usage (which is also at 100% usage).The other hosts are loaded at ~ 40% usage.In these situations, the other hosts cannot accommodate the large VM without causing contention there as well. Lazan does not prioritize one host or VM over others for contention, so it leaves the VM where it is hosted.Number of all-flash nodes in the cluster is less than the replication factor.If the cluster has an RF2 configuration, the cluster must have a minimum of two all-flash nodes for successful migration of VMs on all the all-flash nodes.

ADSCPU迁移决策 - 伟德1964手机,伟德国际19

Tech Enthusiasts!

瓦塞隆Nutanix.NEXT准备或想浸泡所有最新趋势, 与行业专家联网, 并收集多味洞见与观众分享以出席公平技术会议者的身份,我学会了如何充分利用这些活动的一二项知识。不论你是一个老练会议作主者或初创者,这是五大基本技巧,以确保你从Nutanix.NEXT经验中获取最大分量:++/p

计划精度++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++花点时间浏览日程并突出会议与您的兴趣和博客定位考虑优先会议覆盖技术产业热题或展示新Nutanix产品和创新记住留点空间自发性\u2013你永远不知道什么时候你可能偶然发现会话隐藏的宝石
网络像ProQQ/strong>:参加大会的最大福利之一是有机会与志同道合的个人和行业内幕者联网u2013别害羞与参赛者、讲演者及参赛者展开对话交换名片,连接LinkedIn并跟踪事件后个人化邮件网络建设并不只是收集联系人建立有意义的关系可引导协作、客座博客商机或甚至在线下提供工作
留电连接++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++确定打包便携式充电机或电源库全天保持智能手机、平板电脑和笔记本电脑全时充电并记住带任何必备电缆和适配器\u2013你永远不知道你何时需要借或分享
取多笔记数+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++无论是老式笔记或花哨记事应用, 都能找到一种方法为您服务并缩进密钥套接送、趣味引文和可操作的逐行洞见这不仅会帮助你更有效地保留信息, 并会为博客文章、文章和社交媒体更新提供宝贵的饲料
i/generity:在所有学习、联网和记事中,Nutanix.NEXT等会议同样关注职业发展问题,也关注与同龄人建立趣味联系问题。需要时休息探索博览厅并参加社交事件或后方天知道沿途建立终生友情
Nutanix.NEXT以博客身份参赛,追踪这五大基本技巧后, 你便完全能像职业手一样游览大会, 浸泡宝贵的洞见, 并整理出大量饲料供下个博客贴文使用整理包装设备并准备不可忘怀技术探险
Nutanix.NEXT/p
BTW-加入博客评论并分享人们如何用社交方式连接你,Be sure to come by the community lounge and say hi.<\/p>","id":42910,"featuredImage":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/5b7b0b18-6a81-46e0-a066-14c7239a0b4a_thumb.jpg","label":"Blog","replyCount":0,"views":127,"post":{"id":68401,"author":{"id":7898,"url":"\/members\/aluciani-7898","name":"aluciani","avatar":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/icon\/200x200\/77accf89-4f79-48be-81e6-c2ac5507e29b.png","userTitle":"Chevalier","rank":{"isBold":false,"isItalic":false,"isUnderline":false,"name":"Chevalier","color":"#660099"},"userLevel":7,"badges":[{"title":"Acclaim","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/9cdccffa-1497-4d39-a7b8-e0e01671711f_thumb.png"},{"title":"Admiration","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/44c17ed1-991e-4852-a894-dd54254f550a_thumb.png"},{"title":"Adulation","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/af5f1480-352a-4d6f-9112-369ba0a571e5_thumb.png"},{"title":"Applause","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/a097e734-598c-47ab-b0eb-4a456cd0e466_thumb.png"},{"title":"Approachable","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/9857fb33-30cb-41fc-b2eb-3533e43d3642_thumb.png"},{"title":"Blogger","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/da50944b-2fc4-4350-b296-c18cc8f6d425_thumb.png"},{"title":"Celebration","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/d86259e9-f2d5-4c09-83e2-7f76316577a4_thumb.png"},{"title":"Contributor","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/c0f92795-0f72-43c8-b51f-4bed02294a8c_thumb.png"},{"title":"Courteous","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/74e990ba-941b-4cfd-b453-0a6467ff0297_thumb.png"},{"title":"Encourager","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/d5b670e9-b800-47a6-a023-4698f7da7fdb_thumb.png"},{"title":"Endorsement","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/d0979f1b-3d7d-4b49-8ec9-a298fafa8f8e_thumb.png"},{"title":"Engaging","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/fb63c781-8ba9-47b1-b27e-f675e8c7030a_thumb.png"},{"title":"Festival","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/92e622d9-37fe-4ede-b082-4eebd57d703d_thumb.png"},{"title":"First 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Tech Enthusiasts!
瓦塞隆Nutanix.NEXT准备或想浸泡所有最新趋势, 与行业专家联网, 并收集多味洞见与观众分享以出席公平技术会议者的身份,我学会了如何充分利用这些活动的一二项知识。不论你是一个老练会议作主者或初创者,这是五大基本技巧,以确保你从Nutanix.NEXT经验中获取最大分量:++/p

计划精度++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++花点时间浏览日程并突出会议与您的兴趣和博客定位考虑优先会议覆盖技术产业热题或展示新Nutanix产品和创新记住留点空间自发性\u2013你永远不知道什么时候你可能偶然发现会话隐藏的宝石

网络像ProQQ/strong>:参加大会的最大福利之一是有机会与志同道合的个人和行业内幕者联网u2013别害羞与参赛者、讲演者及参赛者展开对话交换名片,连接LinkedIn并跟踪事件后个人化邮件网络建设并不只是收集联系人建立有意义的关系可引导协作、客座博客商机或甚至在线下提供工作

留电连接++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++确定打包便携式充电机或电源库全天保持智能手机、平板电脑和笔记本电脑全时充电并记住带任何必备电缆和适配器\u2013你永远不知道你何时需要借或分享

取多笔记数+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++无论是老式笔记或花哨记事应用, 都能找到一种方法为您服务并缩进密钥套接送、趣味引文和可操作的逐行洞见这不仅会帮助你更有效地保留信息, 并会为博客文章、文章和社交媒体更新提供宝贵的饲料

i/generity:在所有学习、联网和记事中,Nutanix.NEXT等会议同样关注职业发展问题,也关注与同龄人建立趣味联系问题。需要时休息探索博览厅并参加社交事件或后方天知道沿途建立终生友情
Nutanix.NEXT以博客身份参赛,追踪这五大基本技巧后, 你便完全能像职业手一样游览大会, 浸泡宝贵的洞见, 并整理出大量饲料供下个博客贴文使用整理包装设备并准备不可忘怀技术探险
Nutanix.NEXT/p
BTW-加入博客评论并分享人们如何用社交方式连接你,Be sure to come by the community lounge and say hi.<\/p>","url":"\/community-blog-154\/5-essential-tips-for-maximizing-your-experience-at-nutanix-next-for-bloggers-42910?postid=68401#post68401","creationDate":"2024-04-15T16:16:03+0000","relativeCreationDate":"7 days ago"},"contentType":"article","type":3,"likes":3,"hasCurrentUserLiked":false},"config":{"selectedTopic":{"url":"https:\/\/next.nutanix.com\/community-blog-154\/5-essential-tips-for-maximizing-your-experience-at-nutanix-next-for-bloggers-42910","title":"5 Essential Tips for Maximizing Your Experience at Nutanix .NEXT for Bloggers","description":"
Tech Enthusiasts!
瓦塞隆Nutanix.NEXT准备或想浸泡所有最新趋势, 与行业专家联网, 并收集多味洞见与观众分享以出席公平技术会议者的身份,我学会了如何充分利用这些活动的一二项知识。不论你是一个老练会议作主者或初创者,这是五大基本技巧,以确保你从Nutanix.NEXT经验中获取最大分量:++/p

计划精度++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++花点时间浏览日程并突出会议与您的兴趣和博客定位考虑优先会议覆盖技术产业热题或展示新Nutanix产品和创新记住留点空间自发性\u2013你永远不知道什么时候你可能偶然发现会话隐藏的宝石

网络像ProQQ/strong>:参加大会的最大福利之一是有机会与志同道合的个人和行业内幕者联网u2013别害羞与参赛者、讲演者及参赛者展开对话交换名片,连接LinkedIn并跟踪事件后个人化邮件网络建设并不只是收集联系人建立有意义的关系可引导协作、客座博客商机或甚至在线下提供工作

留电连接++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++确定打包便携式充电机或电源库全天保持智能手机、平板电脑和笔记本电脑全时充电并记住带任何必备电缆和适配器\u2013你永远不知道你何时需要借或分享

取多笔记数+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++无论是老式笔记或花哨记事应用, 都能找到一种方法为您服务并缩进密钥套接送、趣味引文和可操作的逐行洞见这不仅会帮助你更有效地保留信息, 并会为博客文章、文章和社交媒体更新提供宝贵的饲料

i/generity:在所有学习、联网和记事中,Nutanix.NEXT等会议同样关注职业发展问题,也关注与同龄人建立趣味联系问题。需要时休息探索博览厅并参加社交事件或后方天知道沿途建立终生友情
Nutanix.NEXT以博客身份参赛,追踪这五大基本技巧后, 你便完全能像职业手一样游览大会, 浸泡宝贵的洞见, 并整理出大量饲料供下个博客贴文使用整理包装设备并准备不可忘怀技术探险
Nutanix.NEXT/p
BTW-加入博客评论并分享人们如何用社交方式连接你,Be sure to come by the community lounge and say hi.<\/p>","id":42910,"featuredImage":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/5b7b0b18-6a81-46e0-a066-14c7239a0b4a_thumb.jpg","label":"Blog","replyCount":0,"views":127,"post":{"id":68401,"author":{"id":7898,"url":"\/members\/aluciani-7898","name":"aluciani","avatar":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/icon\/200x200\/77accf89-4f79-48be-81e6-c2ac5507e29b.png","userTitle":"Chevalier","rank":{"isBold":false,"isItalic":false,"isUnderline":false,"name":"Chevalier","color":"#660099"},"userLevel":7,"badges":[{"title":"Acclaim","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/9cdccffa-1497-4d39-a7b8-e0e01671711f_thumb.png"},{"title":"Admiration","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/44c17ed1-991e-4852-a894-dd54254f550a_thumb.png"},{"title":"Adulation","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/af5f1480-352a-4d6f-9112-369ba0a571e5_thumb.png"},{"title":"Applause","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/a097e734-598c-47ab-b0eb-4a456cd0e466_thumb.png"},{"title":"Approachable","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/9857fb33-30cb-41fc-b2eb-3533e43d3642_thumb.png"},{"title":"Blogger","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/da50944b-2fc4-4350-b296-c18cc8f6d425_thumb.png"},{"title":"Celebration","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/d86259e9-f2d5-4c09-83e2-7f76316577a4_thumb.png"},{"title":"Contributor","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/c0f92795-0f72-43c8-b51f-4bed02294a8c_thumb.png"},{"title":"Courteous","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/74e990ba-941b-4cfd-b453-0a6467ff0297_thumb.png"},{"title":"Encourager","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/d5b670e9-b800-47a6-a023-4698f7da7fdb_thumb.png"},{"title":"Endorsement","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/d0979f1b-3d7d-4b49-8ec9-a298fafa8f8e_thumb.png"},{"title":"Engaging","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/fb63c781-8ba9-47b1-b27e-f675e8c7030a_thumb.png"},{"title":"Festival","url":"https:\/\/uploads-us-west-2.insided.com\/nutanix-us\/attachment\/92e622d9-37fe-4ede-b082-4eebd57d703d_thumb.png"},{"title":"First 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瓦塞隆Nutanix.NEXT准备或想浸泡所有最新趋势, 与行业专家联网, 并收集多味洞见与观众分享以出席公平技术会议者的身份,我学会了如何充分利用这些活动的一二项知识。不论你是一个老练会议作主者或初创者,这是五大基本技巧,以确保你从Nutanix.NEXT经验中获取最大分量:++/p

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5基本技巧优化你Nutanix.NEXT博客

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ADSCPU迁移决策

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ADSCPU迁移决策

一年前
2023年1月9日

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491视图

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Shaun.Sparks

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Acropolis动态调度决定与CPU使用相关AHV迁移时考虑的尺度是什么?ADS是否只考虑主机CPU用法或ADS考虑其他VM或主机量度,如 CPU准备、CO停止和/或窃取时间

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最佳回答穆斯塔法Hindawi2023年1月9日

视图原创

AHV

acropolis动态调度during\u00a0做出与CPU使用有关的AHV迁移决策时考虑的尺度是什么?ADS是否只考虑主机CPU用法或ADS\u00a0计数像 CPU准备、Co停止和/或窃取时间

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穆斯塔法Hindawi

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363回复

一年前
2023年1月9日

回答问题

哈罗 Shaun.Sparks

ADS监控下列资源:

VMCPU使用量:总CPU使用量

存储CPU用法:存储控制器(Stargate)CPU使用/VM或iSCSI目标

ADS不监控存储器和联网用法

acropolis动态调度工作

Lazan服务AHV集群AOS从集群主机中选择Lazan管理器和Lazan求解器以有效管理ADS操作

ADS执行下列任务解决计算存储i/O参数或热点

Lazan管理器收集组件统计

Lazan求解程序检查统计潜在异常并判定如何解决,如果可能的话

Lazan管理程序引用任务(例如VM迁移)解决问题

注释 :

迁移期间 VM消耗源主机和目的地主机资源,高可用性保留算法必须保护两个主机VM如果移徙因缺少免费资源而失效,关上一些VMs以便迁移成为可能

如果检测到问题,ADS无法解决问题(例如,由于有限CPU或存储资源),迁移计划可能失效遇有这种情况,会生成警示从警告仪表板监控这些警讯PrismElement网络控制台并采取必要的补救行动

如果主机、固件或aOS升级正在进行中,如果升级期间发生资源争议,ADS不执行资源争议再平衡

热点检测时

Lazan每15分钟运行并分析资源使用至少该段时间Lazan启动迁移任务清除热点

注意:存储热点 ADS查看最后40分钟数据并使用平滑算法使用最新数据CPU热点 ADS只查看最后10分钟数据,即过去10分钟平均CPU使用量

如果有明显的热点,下列可能是原因,但VM没有迁移:

Lazan解决不了热点例举 :

高VM(16 vCPUs)百分百使用,并占AHV主机使用量的75%(即百分百使用量)。

其它主机加载~40%使用量

在这些情况中,其他主机无法容留大VM而不引起争议Lazan不优先主机或VM比其他主机争吵,所以它离开VM托管

集群中全速节点数小于复制因子
如果集群配置RF2,则集群必须至少有两个全波节点才能在所有全波节点上成功迁移VM

Moustafa Hindawi博客Nutanix技术冠士NCM-MCI##VMCE####2xVCAP-DTM&DV###2xVCP-NV&CMA#LinkedIn

哈罗 @Shaun.Sparks<\/user-mention>\u00a0<\/p>
ADS监控下列资源:

VMCPU使用量:总CPU使用量

存储CPU用法:存储控制器(Stargate)CPU使用/VM或iSCSI目标
ADS不监控存储器和联网用法

acropolis动态调度工作++/h3
Lazan服务AHV集群AOS选择主机群中Lazan管理器和Lazan求解器以有效管理ADS操作
ADS执行下列任务解决计算和存储 I\/Omocs或热点

Lazan管理器收集组件统计

Lazan求解程序检查统计潜在异常并判定如何解决,

Lazan管理程序引用任务(例如VM迁移)解决问题

迁移期间 VM消耗源主机和目的地主机资源,高可用性保留算法必须保护两个主机VM万一迁移因缺少免费资源而失效,关上一些VMs以便迁移成为可能

如果检测到问题,ADS无法解决问题(例如,由于有限CPU或存储资源),迁移计划可能失效遇有这种情况,会生成警示从PrismElement网络控制台监测这些报警并采取必要的补救行动.QQ/LiQit

如果主机、固件或AOS升级正在进行中,如果升级期间发生资源争议,ADS不执行资源争议重新平衡

热点检测时间?
Lazan每15分钟运行并分析资源使用至少该段时间Lazan启动迁移任务清除热点.++/p
注意:\u00a0存储热点ADS查看数据最后40分钟并使用平滑算法使用最新数据对CPU热点,ADS仅查看最后10分钟数据,即过去10分钟平均CPU使用量
abject热点的可能原因如下,但VMs没有迁移

Lazan解决不了热点示例:\t

高VM(16 vCPUs)百分百使用并占AHV主机使用量的75%

其它主机加载~40%使用量
在这些情况中,其他主机无法容留大VM而不引起争议Lazan不优先主机或VM比其他主机争吵,

集群中全速节点数小于复制因子.\t
集群配置时,集群必须至少有两个全波节点才能在所有全波节点上成功迁移VMs

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