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Cheng Jian
2021-06-30 21:49:29 +08:00
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study/kernel/00-DESCRIPTION/BPF.md
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@@ -133,6 +133,18 @@ raw_tracepoint 相比 tracepoint
| 2021/06/19 | Alan Maguire <alan.maguire@oracle.com> | [libbpf: BTF dumper support for typed data](https://lore.kernel.org/patchwork/cover/1448989) | 引入 btf_dump__dump_type_data, 可以用来输出结构体的信息. | v5 ☐ | [PatchWork v5,bpf-next,0/3](https://lore.kernel.org/patchwork/cover/1448989) |
# 5 function call
-------
[Calling kernel functions from BPF](https://lwn.net/Articles/856005)
| 时间 | 作者 | 特性 | 描述 | 是否合入主线 | 链接 |
|:----:|:----:|:---:|:----:|:---------:|:----:|
| 2018/03/01 | Jan H. Schönherr | [bpf: Support calling kernel function](https://patchwork.kernel.org/project/netdevbpf/cover/20210325015124.1543397-1-kafai@fb.com) | BPF 支持直接调用内核函数 | v2 ☑ 5.13-rc1 | [PatchWork v2,bpf-next,00/14](http://patches.linaro.org/cover/221148) |
<br>
* 本作品/博文 ( [AderStep-紫夜阑珊-青伶巷草 Copyright ©2013-2017](http://blog.csdn.net/gatieme) ), 由 [成坚(gatieme)](http://blog.csdn.net/gatieme) 创作.
study/kernel/00-DESCRIPTION/MEMORY_MANAGER.md
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@@ -126,6 +126,15 @@
| 2020/02/24 | [Fine grained MM locking](https://patchwork.kernel.org/project/linux-mm/cover/20200224203057.162467-1-walken@google.com) | MM lockless | RFC ☐ | [PatchWork](https://patchwork.kernel.org/project/linux-mm/cover/20200224203057.162467-1-walken@google.com), [fine_grained_mm.pdf](https://linuxplumbersconf.org/event/4/contributions/556/attachments/304/509/fine_grained_mm.pdf) |
Mainline Merge Window - Merge branch 'akpm' (patches from Andrew)
| 版本 | 发布时间 | 合并链接 |
|:---:|:-------:|:-------:|
| 5.13 | 2021/06/28 | [5.13-rc1 step 1 2021/04/30](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d42f323a7df0b298c07313db00b44b78555ca8e6)<br>[5.13-rc1 step 2 2021/05/05](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8404c9fbc84b741f66cff7d4934a25dd2c344452)<br>[5.13-rc2 2021/05/15](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a4147415bdf152748416e391dd5d6958ad0a96da)<br>[5.13-rc3 2021/05/22](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=34c5c89890d6295621b6f09b18e7ead9046634bc)<br>[5.13-rc5 2021/06/05](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e5220dd16778fe21d234a64e36cf50b54110025f)<br>[5.13-rc7 2021/06/16](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=70585216fe7730d9fb5453d3e2804e149d0fe201)<br>[5.13 2021/06/25](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7ce32ac6fb2fc73584b567c73ae0c47528954ec6) |
| 5.14 | NA | [5.14 2021/06/29](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=65090f30ab791810a3dc840317e57df05018559c) |
社区的内存开发者
[David Rientjes <rientjes@google.com>](https://lore.kernel.org/patchwork/project/lkml/list/?submitter=6580&state=*&archive=both&param=4&page=1)
@@ -258,6 +267,9 @@ Linux 为每个 zone 都设置了独立的 min, low 和 high 三个档位的 wat
| 时间 | 作者 | 特性 | 描述 | 是否合入主线 | 链接 |
|:----:|:----:|:---:|:----:|:---------:|:----:|
| 2011/01/07 | Satoru Moriya <satoru.moriya@hds.com> | [Tunable watermark](https://lore.kernel.org/patchwork/cover/231713) | 引入可调的水线. 为 min/low/high 各个水线都引入了一个 sysctl 接口用于调节. | v1 ☐ | [PatchWork RFC,0/2](https://lore.kernel.org/patchwork/cover/231713) |
| 2013/02/17 | dormando <dormando@rydia.net><br>Rik van Riel <riel@redhat.com> | [add extra free kbytes tunable](https://lore.kernel.org/patchwork/cover/360274) | 默认内核中 min 和 low 之间的距离太短, 造成 kswapd 的作用空间太小, 从而导致频繁出现 direct reclaim. 这个补丁引入 extra_free_kbytes, 作为计算 low 时候的加权. 从而增大 min 和 low 之间的距离. | v1 ☐ | [PatchWork v5](https://lore.kernel.org/patchwork/cover/360274) |
| 2016/02/22 | Johannes Weiner <hannes@cmpxchg.org> | [mm: scale kswapd watermarks in proportion to memory](https://lore.kernel.org/patchwork/cover/649909) | | v2 ☑ 4.6-rc1 | [PatchWork v5](https://lore.kernel.org/patchwork/cover/360274) |
| 2018/11/23 | Mel Gorman | [Fragmentation avoidance improvements v5](https://lore.kernel.org/patchwork/cover/1016503) | 伙伴系统页面分配时的反碎片化 | v5 ☑ 5.0-rc1 | [PatchWork v5](https://lore.kernel.org/patchwork/cover/1016503) |
| 2020/02/25 | Mel Gorman | [Limit runaway reclaim due to watermark boosting](https://lore.kernel.org/patchwork/cover/1200172) | 优化调度器的路径, 减少对 rq->lock 的争抢, 实现 lockless. | v4 ☑ 4.4-rc1 | [PatchWork v6](https://lore.kernel.org/patchwork/cover/1200172) |
| 2020/06/11 |Charan Teja Kalla <charante@codeaurora.org> | [mm, page_alloc: skip ->waternark_boost for atomic order-0 allocations](https://lore.kernel.org/patchwork/cover/1254998) | NA | v1 ☑ 5.9-rc1 | [PatchWork](https://lore.kernel.org/patchwork/cover/1244272), [](https://lore.kernel.org/patchwork/patch/1254998) |
study/kernel/00-DESCRIPTION/SCHEDULER.md
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@@ -89,6 +89,18 @@ Linux 除了实现上述策略, 还额外支持以下策略:
| 2020/12/14 | [select_idle_sibling() wreckage](https://lore.kernel.org/patchwork/cover/1353496) | 重构 SIS_PROP 的逻辑, 重新计算 CPU 的扫描成本, 同时归一 select_idle_XXX 中对 CPU 的遍历, 统一选核的搜索逻辑来降低开销, 提升性能 | RFC | [PatchWork](https://lore.kernel.org/patchwork/cover/1353496), [lkml](https://lkml.org/lkml/2020/12/14/560) |
54a728dc5e4f Merge tag 'sched-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
666751701b6e Merge tag 'sched-urgent-2021-06-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Mainline Merge Window
| 版本 | 发布时间 | 合并链接 |
|:---:|:-------:|:-------:|
| 5.13 | 2021/06/28 | [Merge tag 'sched-core-2021-04-28', 5.13-rc1](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16b3d0cf5bad844daaf436ad2e9061de0fe36e5c)<br>[Merge tag 'sched-urgent-2021-05-09', 5.13-rc1](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9819f682e48c6a7055c5d7a6746411dd3969b0e5)<br>[Merge tag 'sched-urgent-2021-05-15', 5.13-rc2](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c12a29ed9094b4b9cde8965c12850460b9a79d7c)<br>[Merge tag 'sched-urgent-2021-06-12', 5.13-rc6](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=99f925947ab0fd5c17b74460d8b32f1aa1c86e3a)<br>[Merge tag 'sched_urgent_for_v5.13_rc6', 5.13-rc7, 2021/06/20](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cba5e97280f53ec7feb656fcdf0ec00a5c6dd539)<br>[Merge tag 'sched-urgent-2021-06-24', 5.13](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=666751701b6e4b6b6ebc82186434806fa8a09cf3)<br> |
| 5.14 | NA | 2021/06/28 | [Merge tag 'sched-core-2021-06-28'](https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=54a728dc5e4feb0a9278ad62b19f34ad21ed0ee4) |
社区几个调度的大神
[Mel Gorman mgorman@techsingularity.net](https://lore.kernel.org/patchwork/project/lkml/list/?submitter=19167)
@@ -414,7 +426,7 @@ coscheduling 协同调度是为了解决云服务场景, 为不同用户提供
| 2019/12/19 | Peter & Kirill Tkhai 等 | [Core scheduling (v9)](https://lore.kernel.org/patchwork/cover/1340764) | 核调度器, 限制同一个 SMT 域内的两个 CPU 只能运行同一组进程 | v9 ☐ |[PatchWork v9](https://lore.kernel.org/patchwork/cover/1340764) |
| 2021/03/25 | Joel Fernandes 等 | [Core scheduling remaining patches rebase](https://lore.kernel.org/patchwork/cover/1369931) | Core scheduling v9 的大部分补丁都已经在合入队列了, 部分未合入补丁的重构与适配. | v10 ☐ | [PatchWork v9](https://lore.kernel.org/patchwork/cover/1369931)<br>*-*-*-*-*-*-*-* <br>[PatchWork v9 resend](https://lore.kernel.org/patchwork/cover/1401863) |
| 2021/04/01 | Peter Zijlstra | [sched: Core scheduling interfaces](https://lore.kernel.org/patchwork/cover/1406301) | Peter 重新设计了 Core scheduling 的接口. | v10 ☐ |[PatchWork v9](https://lore.kernel.org/patchwork/cover/1406301) |
| 2021/04/22 | Peter Zijlstra | [sched: Core Scheduling](https://lore.kernel.org/patchwork/cover/1417028) | Peter 重构的 Core scheduling, 已经合入 TIP 分支 | v10 ☐ |[PatchWork v10](https://lore.kernel.org/patchwork/cover/1417028) |
| 2021/04/22 | Peter Zijlstra | [sched: Core Scheduling](https://lore.kernel.org/patchwork/cover/1417028) | Peter 重构的 Core scheduling, 已经合入 TIP 分支 | v10 ☑ 5.14-rc1 |[PatchWork v10](https://lore.kernel.org/patchwork/cover/1417028) |
@@ -479,7 +491,7 @@ https://lore.kernel.org/lkml/157476581065.5793.4518979877345136813.stgit@buzz/
| 时间 | 作者 | 特性 | 描述 | 是否合入主线 | 链接 |
|:----:|:----:|:---:|:----:|:---------:|:----:|
| 2021/03/16 | JHuaixin Chang | [sched/fair: Burstable CFS bandwidth controller](https://lore.kernel.org/patchwork/cover/1396878) | 突发任务的带宽控制优化, 通过临时之前剩余累计的配额, 使得突发进程在当前周期的配额突然用尽之后, 还可以临时使用之前累计的配额使用, 从而降低突发任务的时延. | v5 ☐ | [ 2020/12/17 v1](https://lore.kernel.org/patchwork/cover/1354613)<br>*-*-*-*-*-*-*-*<br>[2021/01/20 v2](https://lore.kernel.org/patchwork/cover/1368037)<br>*-*-*-*-*-*-*-*<br>[2021/01/21 v3](https://lore.kernel.org/patchwork/cover/1368746)<br>*-*-*-*-*-*-*-*<br>[2021-02-02 v4](https://lore.kernel.org/patchwork/cover/1396878)<br>*-*-*-*-*-*-*-*<br>[2021/05/20 v5](https://lore.kernel.org/patchwork/cover/1433660) |
| 2021/06/21 | JHuaixin Chang | [sched/fair: Burstable CFS bandwidth controller](https://lore.kernel.org/patchwork/cover/1396878) | 突发任务的带宽控制优化, 通过临时之前剩余累计的配额, 使得突发进程在当前周期的配额突然用尽之后, 还可以临时使用之前累计的配额使用, 从而降低突发任务的时延. | v6 ☑ 5.14-rc1 | [ 2020/12/17 v1](https://lore.kernel.org/patchwork/cover/1354613)<br>*-*-*-*-*-*-*-*<br>[2021/01/20 v2](https://lore.kernel.org/patchwork/cover/1368037)<br>*-*-*-*-*-*-*-*<br>[2021/01/21 v3](https://lore.kernel.org/patchwork/cover/1368746)<br>*-*-*-*-*-*-*-*<br>[2021-02-02 v4](https://lore.kernel.org/patchwork/cover/1396878)<br>*-*-*-*-*-*-*-*<br>[2021/05/20 v5](https://lore.kernel.org/patchwork/cover/1433660)<br>*-*-*-*-*-*-*-*<br>[2021/06/21 v6](https://lore.kernel.org/patchwork/cover/1449268) |
## 1.2.2 实时进程的组调度支持(RT Group Scheduling)
@@ -901,7 +913,7 @@ ARM 的 Morten Rasmussen 一直致力于ANDROID 调度器优化的:
| 2021/03/11 | Valentin Schneider | [sched/fair: misfit task load-balance tweaks](https://lore.kernel.org/patchwork/cover/1393531) | 优化 misfit task 的一些逻辑 | v3 ☐ 5.10-rc4 | [PatchWork](https://lore.kernel.org/patchwork/cover/1393531) |
| 2021/04/07 | Valentin Schneider | [sched/fair: load-balance vs capacity margins](https://lore.kernel.org/patchwork/cover/1409479) | misfit task load-balance tweaks 的补丁被拆分重构, 这个是 Part 1 | v3 ☐ 5.10-rc4 | [PatchWork](https://lore.kernel.org/patchwork/cover/1409479) |
| 2021/04/16 | Valentin Schneider | [sched/fair: (The return of) misfit task load-balance tweaks](https://lore.kernel.org/patchwork/cover/1414181) | misfit task load-balance tweaks 的补丁被拆分重构, 这个是 Part 2 | v1 ☐ 5.10-rc4 | [PatchWork](https://lore.kernel.org/patchwork/cover/1414181) |
| 2021/05/10 | Valentin Schneider | [Rework CPU capacity asymmetry detection](https://lore.kernel.org/patchwork/cover/1424708) | 优化 misfit task 的一些逻辑 | v3 ☐ 5.10-rc4 | [PatchWork v1](https://lore.kernel.org/patchwork/cover/1414557)<br>*-*-*-*-*-*-*-* <br>[PatchWork v3](https://lore.kernel.org/patchwork/cover/1424708) |
| 2021/05/10 | Valentin Schneider | [Rework CPU capacity asymmetry detection](https://lore.kernel.org/patchwork/cover/1424708) | 优化 misfit task 的一些逻辑 | v7 ☑ 5.14-rc1 | [PatchWork v1](https://lore.kernel.org/patchwork/cover/1414557)<br>*-*-*-*-*-*-*-* <br>[PatchWork v7](https://lore.kernel.org/patchwork/cover/1440770) |
异构拓扑优化
study/kernel/02-memory/04-buddy/08-watermark/README.md
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@@ -1,6 +1,6 @@
---
title: 虚拟化 & KVM 子系统
title: 内存水线
date: 2021-02-15 00:32
author: gatieme
tags:
@@ -32,7 +32,7 @@ blogexcerpt: 虚拟化 & KVM 子系统
<br>
2 **虚拟化子系统**
2 **内存水线**
=====================