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* RTSS17 submitwip-modechangeNamhoon Kim2017-05-01
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* Added benchmarks and user tasksStephen Tang2017-04-03
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* Fix SCHED_LITMUS definitionwip-shared-memNamhoon Kim2016-05-03
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* add pgm signal apiNamhoon Kim2016-05-03
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* MergedNamhoon Kim2016-05-03
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| * RTSS16 microbenchNamhoon Kim2016-04-30
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* | Add PGM^RT supportNamhoon Kim2016-05-03
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* update .gitignoreNamhoon Kim2016-04-19
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* remove mc2spin executableNamhoon Kim2016-04-19
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* add support for pgmNamhoon Kim2016-04-19
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* Add close()Namhoon Kim2016-04-06
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* Colored SHM test program. bin/mttest.cNamhoon Kim2016-04-05
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* Added mc2spinNamhoon Kim2015-01-08
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* resctrl: default to max. priority for table-driven reservationsBjoern Brandenburg2014-09-08
| | | | | | Table-driven reservations should always have the maximum fixed priority. Thus default to this behavior, both for convenience and to avoid accidental misconfiguration.
* Add resctrl, a tool for setting up reservationsBjoern Brandenburg2014-07-22
| | | | | | | | resctrl is a new tool intended to configure reservations in reservation-aware plugins. For now, it only supports the partitioned reservations (P-RES) plugin. (While at it, also update .gitignore)
* Add -r (reservation) and -v (verbose) flags to rtspinBjoern Brandenburg2014-07-22
| | | | | | | | | | The -r flag allows specifying a "virtual CPU" (in addition to a physcial CPU to migrate to) that may be interpreted by a scheduler plugin to refer to a reservation to which the task should be added. The -v flag causes rtspin to output timing information on stdout and can be useful for early-stage plugin debugging (to see that something is happening at all).
* Add reservation-related system callsBjoern Brandenburg2014-07-17
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* Add test cases for enforcement of periods of periodic tasksBjoern Brandenburg2014-06-12
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* read_mapping() breaks on NR_CPUS not div by 32Glenn Elliott2014-06-06
| | | | | | | This patch fixes a bug in read_mapping(), which is used for reading CPU and cluster (domain) mappings. read_mapping() did not account for the case when NR_CPUS is not evenly divisible by 32 (quite common when NR_CPUS < 32).
* Cosmetic: Fix error string to match fn name.Glenn Elliott2014-06-06
| | | | | Patch cleans up an error message to match the migrate-to-domain API.
* Remove unneeded code from domain migration.Glenn Elliott2014-06-06
| | | | | | | This patch removes unneeded code from be_migrate_thread_to_domain(). This function no longer needs to check the number of online CPUs since the CPU mask for a given domain is now returned directly from read_mapping().
* Modernize rt_launch; remove internal API cruftBjoern Brandenburg2014-06-03
| | | | | | | Switch rt_launch to use a more modern way to launch real-time tasks. This makes rt_launch more flexible, makes it more similar to rtspin, and also allows to let us get rid of a chunk of old, inflexible code in liblitmus that wasn't really serving any useful purpose anymore.
* Remove over-specification of task parameters from two testsBjoern Brandenburg2014-06-03
| | | | Don't override the defaults unless required.
* FIX: Add S_IRUSR to open() for DFLP.Glenn Elliott2014-05-19
| | | | | This patch adds S_IRUSR as the third parameter to open() in the DFLP locking unit test.
* Migration: Support systems with more than 32 CPUs.Glenn Elliott2014-05-19
| | | | | | | | | | | | This patch improves the cpu bit map parsing used to determine CPU/cluster mapping. Namely, it supports clusters with more than 32 CPUs. Prior to this patch, mapping would fail due to unexpected commas in bitfield data read from /proc (groups of 32 CPUs are separated by commas). NOTE: Bug could still be encountered if NR_CPUS > 32. New CPU limit: 4096.
* Remove invalid CPU parameter testBjoern Brandenburg2014-04-01
| | | | | | | | The LITMUS^RT kernel was changed to no longer test for "invalid" CPU paramters to allow reuse of the CPU parameter to denote virtual CPUs, reservations, etc. This patch removes the corresponding test.
* Add add convenience wrapper and tests for the DFLPBjoern Brandenburg2014-04-01
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* Add support for the DFLPBjoern Brandenburg2014-04-01
| | | | Just add the ID and symbol.
* Add missing default param initializationBjoern Brandenburg2014-04-01
| | | | | | Make sure new default parameters such as the deadline are taken care of in the old task creation routines. This fixes a problem with rt_launch.
* Add test cases for exiting/mode-changing lock holdersBjoern Brandenburg2014-03-19
| | | | | This crashes old versions of the kernel. Kernel patches fixing the various panics have been merged into the kernel staging tree.
* liblitmus/tests: Add PCP-DPCP interleaving testRoy Spliet2014-03-19
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* Use /proc/litmus/domains to set up affinity masksGlenn Elliott2014-02-24
| | | | | | | | | | | | | | | | | | | | | | | | | This patch replaces the algorithm used to compute CPU affinity masks. The old algorithm was fragile and would break on systems with multiple levels of shared caches. (As found on some older Intel chips, and as one would probably find on a system with hyper-threading enabled.) The bug stems from fact that Linux enumerates consecutive CPUs in a way that distributes them across the physical system, thereby reducing contention resources (e.g., cache). Cluster size no longer needs to be provided now that cluster/CPU mappings are explicit in /proc/litmus/domains/. This keeps the following migration functions, but marks them as deprecated: - be_migrate_to_cluster() - cluster_to_first_cpu() - partition_to_cpu() Although the deprecated interfaces are supported, the implementations for these functions call the new be_migrate_to_domain() and domain_to_first_cpu() functions. [bbb: resolved several merge conflicts]
* Hook up doxygen as 'make doc'Bjoern Brandenburg2013-11-27
| | | | Also adjust 'make clean' and .gitignore.
* liblitmus: Add Doxygen documentation for public APIsRoy Spliet2013-11-27
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* liblitmus/bin: Use inttypes.h macros for 64-bit integer printingRoy Spliet2013-11-11
| | | | | | Fixed build on ARMv7 Signed-off-by: Roy Spliet <rspliet@mpi-sws.org>
* Fix for C++: 'namespace' renamed to 'name_space'Glenn Elliott2013-09-27
| | | | | | | Renames the 'namespace' parameter to litmus_open_lock() forard declaration in litmus.h to 'name_space'. This allows litmus.h to be compiled by a C++ compiler. (Note: Using 'extern "C" {}' does not work as an alternative solution.)
* Switch NP flag format back to 32 bits (uint32_t)2013.1Bjoern Brandenburg2013-07-21
| | | | This matches the corresponding change in the kernel.
* Port Makefile to new Linux kernel header layoutBjoern Brandenburg2013-07-11
| | | | | | | | | | | The userspace versions of unistd.h have moved to include/uapi/asm in recent kernel versions; we need to adjust the liblitmus Makefile accordingly. Further, on x86, the unistd_32.h and unistd_64.h files are now actually being auto-generated; this also forced adjustments. This patch is required for liblitmus to compile against Linux 3.10.
* User large enough buffer to read /proc/litmus/release_masterpgmHiroyuki Chishiro2013-07-02
| | | | The string 'NO_CPU' needs to fit into the buffer.
* Add a test for admission of tasks that are currently runningBjoern Brandenburg2013-06-08
| | | | | Complements the prior test for suspended tasks. All plugins currently pass this test.
* Add testcase for admission of suspended tasksBjoern Brandenburg2013-06-08
| | | | | | The kernel needs to be able to deal with tasks that do not make themselves a real-time task, but get configured by some other task instead.
* Update constat SPORADIC->TASK_SPORADICBjoern Brandenburg2013-06-08
| | | | | A recent patch changed the name of the constant in the kernel. Update liblitmus accordingly.
* Fix compile failure related to aliasing (gcc 4.4.5)Bjoern Brandenburg2013-04-17
| | | | | | | | My version of gcc would complain about "dereferencing pointer does break strict-aliasing rules" because of a (harmless) pointer cast. This patch adds a helper void pointer to make the assignment explicit, which avoids the cast and hence silences the warning.
* Change convenience API routines.Glenn Elliott2013-03-12
| | | | | | | | | | | | | The sproadic_*() macros have become unwieldy. This patch replaces those convenience macros for global, clustered, and partitioned scheduling. A part of this API change is the explicit use of nanosecond time-values. Prior APIs have used lt_t (litmus time), which had an implied time scale of nanoseconds. /bin apps and test suite also updated to use revised API. Modifications to the test suite are mostly centered around using nanoseconds instead of milliseconds.
* Add init_rt_task_param().Glenn Elliott2013-03-12
| | | | | Adds init_rt_task_param(). Facilitates setting up default real-time task attributes that cannot be set by memset(0).
* Cluster-aware rtspin and rt_launch.Glenn Elliott2013-03-12
| | | | | | | | | This patch adds cluster scheduling options to rtspin and rt_launch. The convenience routines in litmus.h were also updated to facilitate clustered scheduling. For partitioned scheduling, just set cluster_size = 1 (default size for rtspin and rt_launch).
* Auto-CPU-affinity from part./cluster assignment.Glenn Elliott2013-03-12
| | | | | | | | | | | This patch replaces be_migrate_to() with several be_migrate_*() APIs to automatically assign CPU affinity masks from a task's partition (or cluster) assignment. Routines are release-master-aware such that the release master (if one exists) will NOT be included in the task's affinity mask. (Note that release-master avoidance may be overridden by calling __be_migrate_thread_to_cluster().)
* Make github/staging complatible with -O2.Glenn Elliott2013-03-12
| | | | | Minor changes to test case code to enable compilation with 'gcc -O2' (gcc v4.7.2).
* uncachedev: uncache test tool.Glenn Elliott2013-03-12
| | | | | | | | | | | | | | | | | This adds the uncache test tool (bin/uncache.c). The tool can be used to test Litmus's char device driver for allocating uncacheable CPU memory. The tool runs various checks and gathers basic cache vs. main memory statistics. In the future, uncache could be extended to quantify the benefits of the L1, L2, and L3 caches, instead of treating them as a black box. Note: Uncache works best when compiled with '-O2'. While '-O2' has not been added to the Makefile, other code was updated (code in tests/ and rtspin), to compile with -O2. DEPENDS UPON LITMUS-RT PATCH 888d097deb6d1fdc0c89a4f9667fd81cf416cfc7.
* Add test cases that check whether nesting is prohibitedBjoern Brandenburg2013-02-15
| | | | | The kernel should deny attempts to nest resources in ways that are not supported.
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