mirror of
https://github.com/genodelabs/genode.git
synced 2025-01-31 08:25:38 +00:00
Alexander Boettcher
Christian Helmuth
parent
90bea1499e
commit
e61f6cfd38
62
repos/base/run/migrate.run
Normal file
62
repos/base/run/migrate.run
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@ -0,0 +1,62 @@
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build "core init test/migrate timer"
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if {![have_include "power_on/qemu"]} {
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puts "Run script is not supported on this platform"
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exit 0
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}
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if {[have_spec foc] && ([have_spec pbxa9] || [have_spec rpi3])} {
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# foc kernel does detect solely 1 CPU */
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puts "Run script is not supported on this platform"
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exit 0
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}
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if {![have_spec nova] && ![have_spec foc] && ![have_spec sel4]} {
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puts "Run script is not supported on this platform"
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exit 0
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}
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create_boot_directory
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append config {
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<config prio_levels="2">
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<parent-provides>
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<service name="LOG"/>
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<service name="CPU"/>
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<service name="ROM"/>
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<service name="PD"/>
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<service name="IO_PORT"/> <!-- on some kernels for timer -->
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<service name="IRQ"/> <!-- on some kernels for timer -->
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<service name="TRACE"/> <!-- used by migration test -->
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</parent-provides>
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<default-route>
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<any-service> <parent/> <any-child/> </any-service>
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</default-route>
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<start name="timer" caps="100">
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<resource name="RAM" quantum="1M"/>
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<provides><service name="Timer"/></provides>
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</start>
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<start name="test-migrate" caps="100">
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<resource name="RAM" quantum="10M"/>
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<config />
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</start>
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</config>
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}
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install_config $config
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build_boot_image "core ld.lib.so init test-migrate timer"
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append qemu_args "-nographic "
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append qemu_args "-smp 4,cores=4,threads=1"
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run_genode_until {.*test completed successfully.*\n} 70
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grep_output {^\[init -> test-migrate\] \[ep\] thread 'migrate' migrated, .*}
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compare_output_to {
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[init -> test-migrate] [ep] thread 'migrate' migrated, location=1x0
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[init -> test-migrate] [ep] thread 'migrate' migrated, location=2x0
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[init -> test-migrate] [ep] thread 'migrate' migrated, location=3x0
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[init -> test-migrate] [ep] thread 'migrate' migrated, location=0x0
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}
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173
repos/base/src/test/migrate/main.cc
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173
repos/base/src/test/migrate/main.cc
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@ -0,0 +1,173 @@
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/*
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* \brief Testing thread migration
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* \author Alexander Boettcher
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* \date 2020-08-13
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*/
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/*
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* Copyright (C) 2020 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU Affero General Public License version 3.
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*/
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/* Genode includes */
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#include <base/component.h>
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#include <cpu_session/connection.h>
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#include <cpu_thread/client.h>
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#include <timer_session/connection.h>
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#include <trace_session/connection.h>
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using namespace Genode;
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enum { STACK_SIZE = 0x3000 };
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/************************************************
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** Migrate thread over all available CPU test **
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************************************************/
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struct Migrate_thread : Thread
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{
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Blockade blockade { };
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Env &env;
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Migrate_thread(Env &env)
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: Thread(env, "migrate", STACK_SIZE), env(env)
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{ }
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void entry() override
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{
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Cpu_thread_client thread_client(cap());
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/* we are ready */
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blockade.wakeup();
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while (true) {
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log("[migrate] going to sleep");
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blockade.block();
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log("[migrate] woke up - got migrated ?");
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}
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}
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};
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struct Migrate
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{
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Env &env;
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Timer::Connection timer { env };
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Migrate_thread thread { env };
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Trace::Connection trace { env, 15 * 4096 /* RAM quota */,
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11 * 4096 /* ARG_BUFFER RAM quota */,
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0 /* parent levels */ };
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Signal_handler<Migrate> timer_handler { env.ep(), *this,
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&Migrate::check_traces };
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Trace::Subject_id trace_id { };
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Affinity::Location location { };
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unsigned loc_same { 0 };
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unsigned loc_pos { 0 };
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unsigned test_rounds { 0 };
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enum State {
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LOOKUP_TRACE_ID, CHECK_AFFINITY, MIGRATE
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} state { LOOKUP_TRACE_ID };
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Migrate(Env &env) : env(env)
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{
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Affinity::Space cpus = env.cpu().affinity_space();
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log("Detected ", cpus.width(), "x", cpus.height(), " CPU",
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cpus.total() > 1 ? "s." : ".");
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timer.sigh(timer_handler);
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thread.start();
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thread.blockade.block();
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timer.trigger_periodic( 500 * 1000 /* us */);
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}
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void check_traces()
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{
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switch (state) {
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case LOOKUP_TRACE_ID:
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{
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auto count = trace.for_each_subject_info([&](Trace::Subject_id const &id,
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Trace::Subject_info const &info)
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{
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if (info.thread_name() != "migrate")
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return;
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trace_id = id;
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location = info.affinity();
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state = CHECK_AFFINITY;
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log("[ep] thread '", info.thread_name(), "' started,",
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" location=", location.xpos(), "x", location.ypos());
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});
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if (count.count == count.limit && state == LOOKUP_TRACE_ID) {
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error("trace argument buffer too small for the test");
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}
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break;
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}
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case CHECK_AFFINITY:
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{
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Trace::Subject_info const info = trace.subject_info(trace_id);
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loc_same ++;
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if ((location.xpos() == info.affinity().xpos()) &&
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(location.ypos() == info.affinity().ypos()) &&
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(location.width() == info.affinity().width()) &&
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(location.height() == info.affinity().height()))
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{
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if (loc_same >= 1) {
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loc_same = 0;
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state = MIGRATE;
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}
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log ("[ep] .");
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break;
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}
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loc_same = 0;
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location = info.affinity();
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log("[ep] thread '", info.thread_name(), "' migrated,",
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" location=", location.xpos(), "x", location.ypos());
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test_rounds ++;
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if (test_rounds == 4)
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log("--- test completed successfully ---");
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break;
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}
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case MIGRATE:
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state = CHECK_AFFINITY;
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loc_pos ++;
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Affinity::Location const loc = env.cpu().affinity_space().location_of_index(loc_pos);
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/* trigger migration */
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Cpu_thread_client client(thread.cap());
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client.affinity(loc);
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log("[ep] thread 'migrate' scheduled to migrate to location=",
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loc.xpos(), "x", loc.ypos());
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thread.blockade.wakeup();
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break;
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}
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}
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};
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void Component::construct(Env &env)
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{
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log("--- migrate thread test started ---");
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static Migrate migrate_test(env);
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}
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3
repos/base/src/test/migrate/target.mk
Normal file
3
repos/base/src/test/migrate/target.mk
Normal file
@ -0,0 +1,3 @@
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TARGET = test-migrate
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SRC_CC = main.cc
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LIBS = base
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@ -22,6 +22,7 @@ lx_hybrid_ctors
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lx_hybrid_exception
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lx_hybrid_pthread_ipc
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microcode
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migrate
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moon
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netperf_lwip
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netperf_lwip_bridge
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