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69
README.md
69
README.md
@ -1,30 +1,73 @@
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# stalld
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#### 介绍
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The stalld program is a mechanism to prevent the starvation of operating system threads in a Linux system.
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The stalld program (which stands for 'stall daemon') is a
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mechanism to prevent the starvation of operating system threads in a
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Linux system. The premise is to start up on a housekeeping cpu (one
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that is not used for real-application purposes) and to periodically
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monitor the state of each thread in the system, looking for a thread
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that has been on a run queue (i.e. ready to run) for a specifed length
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of time without being run. This condition is usually hit when the
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thread is on the same cpu as a high-priority cpu-intensive task and
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therefore is being given no opportunity to run.
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When a thread is judged to be starving, stalld changes
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that thread to use the SCHED_DEADLINE policy and gives the thread a
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small slice of time for that cpu (specified on the command line). The
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thread then runs and when that timeslice is used, the thread is then
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returned to its original scheduling policy and stalld then
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continues to monitor thread states.
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There is now an experimental option to boost using SCHED_FIFO. This
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logic is used if the running kernel does not support the
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SCHED_DEADLINE policy and may be forced by using the -F/--force_fifo
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option.
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#### 软件架构
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软件架构说明
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#### 安装教程
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1. xxxx
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2. xxxx
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3. xxxx
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Install stalld rpm package:
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yum install stalld
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#### 使用说明
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Logging options
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1. xxxx
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2. xxxx
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3. xxxx
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-l/--log_only: only log information (do not boost) [false]
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-v/--verbose: print info to the std output [false]
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-k/--log_kmsg: print log to the kernel buffer [false]
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-s/--log_syslog: print log to syslog [true]
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Startup options
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-c/--cpu: list of cpus to monitor for stalled threads [all cpus]
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-f/--foreground: run in foreground [false but true when -v]
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-P/--pidfile: write daemon pid to specified file [no pidfile]
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Boosting options
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-p/--boost_period: SCHED_DEADLINE period [ns] that the starving task will receive [1000000000]
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-r/--boost_runtime: SCHED_DEADLINE runtime [ns] that the starving task will receive [20000]
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-d/--boost_duration: how long [s] the starving task will run with SCHED_DEADLINE [3]
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-F/--force_fifo: force using SCHED_FIFO for boosting
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Monitoring options
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-t/--starving_threshold: how long [s] the starving task will wait before being boosted [60]
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-A/--aggressive_mode: dispatch one thread per run queue, even when there is no starving
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threads on all CPU (uses more CPU/power). [false]
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#### 参与贡献
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1. Fork 本仓库
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2. 新建 Feat_xxx 分支
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3. 提交代码
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4. 新建 Pull Request
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master分支使用最新的上游版本,如果检测到上游有最新版本发布,先形成issue后再提交对应PR更新,流程如下。
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1. 提交issue
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2. Fork 本仓库
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3. 新建 Feat_xxx 分支
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4. 提交代码
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5. 新建 Pull Request
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#### 特技
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30
riscv_support.patch
Normal file
30
riscv_support.patch
Normal file
@ -0,0 +1,30 @@
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diff --git a/Makefile b/Makefile
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index f866a74..76aefe2 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -34,6 +34,12 @@ USE_BPF := 0
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FCF_PROTECTION := $(CF_PROTECTION_OPTS)
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TMOPTS := -mtune=powerpc
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endif
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+ifeq ($(ARCH),riscv64)
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+USE_BPF :=0
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+FCF_PROTECTION := $(CF_PROTECTION_OPTS)
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+TMOPTS := -march=rv64gc -mabi=lp64d
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+endif
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+
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$(info USE_BPF=$(USE_BPF))
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$(info FCF_PROTECTION=$(FCF_PROTECTION))
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diff --git a/src/stalld.h b/src/stalld.h
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index a5b9dbc..7362d4e 100644
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--- a/src/stalld.h
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+++ b/src/stalld.h
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@@ -119,7 +119,7 @@ struct stalld_backend {
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#elif __arm__
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# define __NR_sched_setattr 380
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# define __NR_sched_getattr 381
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-#elif __aarch64__ || __loongarch64
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+#elif __aarch64__ || __loongarch64 || __riscv
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# define __NR_sched_setattr 274
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# define __NR_sched_getattr 275
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#elif __powerpc__
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Binary file not shown.
BIN
stalld-v1.19.1.tar.bz2
Normal file
BIN
stalld-v1.19.1.tar.bz2
Normal file
Binary file not shown.
31
stalld.spec
31
stalld.spec
@ -1,11 +1,12 @@
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Name: stalld
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Version: 1.16
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Version: v1.19.1
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Release: 1
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Summary: Daemon that finds starving tasks and gives them a temporary boost
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License: GPLv2
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URL: https://gitlab.com/rt-linux-tools/%{name}
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Source0: https://gitlab.com/rt-linux-tools/%{name}/-/archive/v%{version}/%{name}-%{version}.tar.bz2
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Source0: https://gitlab.com/rt-linux-tools/%{name}/-/archive/%{version}/%{name}-%{version}.tar.bz2
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Patch0: riscv_support.patch
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BuildRequires: glibc-devel
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BuildRequires: gcc
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@ -14,6 +15,15 @@ BuildRequires: systemd
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Requires: systemd
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%ifnarch i686
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BuildRequires: bpftool
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BuildRequires: clang
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BuildRequires: libbpf-devel
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BuildRequires: llvm
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Requires: libbpf
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%endif
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%description
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The stalld program monitors the set of system threads,
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looking for threads that are ready-to-run but have not
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@ -23,21 +33,23 @@ boost using the SCHED_DEADLINE policy. The default is to
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allow 10 microseconds of runtime for 1 second of clock time.
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%prep
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%autosetup
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%autosetup -p1
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%build
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%make_build CFLAGS="%{optflags} %{build_cflags} -DVERSION="\\\"%{version}\\\""" LDFLAGS="%{build_ldflags}"
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%install
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%make_install DOCDIR=%{_docdir} MANDIR=%{_mandir} BINDIR=%{_bindir} DATADIR=%{_datadir} VERSION=%{version}
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%make_install -C redhat UNITDIR=%{_unitdir}
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%make_install -C systemd UNITDIR=%{_unitdir}
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mkdir -p %{buildroot}%{_docdir}/%{name}
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mv %{buildroot}%{_docdir}/README.md %{buildroot}%{_docdir}/%{name}/
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%files
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%{_bindir}/%{name}
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%{_bindir}/throttlectl
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%{_unitdir}/%{name}.service
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%config(noreplace) %{_sysconfdir}/sysconfig/stalld
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%doc %{_docdir}/README.md
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%doc %{_docdir}/%{name}/README.md
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%doc %{_mandir}/man8/stalld.8*
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%license gpl-2.0.txt
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@ -51,6 +63,15 @@ allow 10 microseconds of runtime for 1 second of clock time.
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%systemd_postun_with_restart %{name}.service
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%changelog
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* Sat Mar 23 2024 luojun <luojun.oerv@isrc.iscas.ac.cn> - v1.19.1-1
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- update to v1.19 and support for oe-riscv
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* Thu Sep 14 2023 duyiwei <duyiwei@kylinos.cn> - 1.16-3
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- move README
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* Thu Jul 20 2023 lvgenggeng <lvgenggeng@uniontech.com> - 1.16-2
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- add support for loongarch64
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* Mon Nov 07 2022 duyiwei <duyiwei@kylinos.cn> - 1.16-1
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- upgrade version to 1.16
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4
stalld.yaml
Normal file
4
stalld.yaml
Normal file
@ -0,0 +1,4 @@
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version_control: gitlab
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src_repo: rt-linux-tools/stalld
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tag_prefix: "v"
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separator: "."
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