Remove unused configuration options for nOS-V

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Rodrigo Arias 2023-05-30 17:41:05 +02:00
parent 778c119bd6
commit f5a911485a

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@ -1,82 +1 @@
# Shared memory configuration
[shared_memory]
# Name of the shared memory section. This can be leveraged to create two separate nOS-V instances
# in the same system. Generally this has to remain unchanged
name = "nosv-ovni"
# Size of the shared memory section. Choose powers of two
size = "2G"
# Start of the shared memory mapping
# This option should be memory address codified in hexadecimal (start with 0x)
start = 0x0000200000000000
# Scheduler configuration
# These parameters allow to fine tune the scheduler's behaviour
[scheduler]
# Number of logical CPUs mapped to a single scheduler SPSC for ready tasks
# Minimum is 1, there is no maximum. Try to choose numbers that divide evenly the number
# of CPUs in the system.
# A lower number will yield more scheduling throughput and is adequate when using
# multiple task creator processes.
# A higher number will yield lower scheduling latency and is adequate when using one or few
# task creator processes
cpus_per_queue = 1
# Number of tasks that are grabbed off of a queue when processing ready tasks.
# Lowering the number may be better if there are very few ready tasks during execution.
# Increasing the batch may help if your CPU has bad single-thread performance.
# In general, the default value of 64 should result in a good trade-off
queue_batch = 64
# Scheduler quantum in ns. This is a guideline for how long should we execute one process' tasks
# until we have to switch to the next one. However, as nOS-V tasks are not preemptable, it isn't enforced.
# This parameter is specially relevant for the nosv_schedpoint function, which will try to schedule
# each quantum ns.
# A lower value will cause more inter-process context switches but may provide more uniform progress,
# while a higher value will minimize context switches but may stall applications for longer
quantum_ns = 20000000 # nanoseconds
# Size of the queues that are used to place tasks into the scheduler
# A good value should be a multiple of queue_batch
in_queue_size = 256
# CPU Governor configuration
# Controls the policy that nOS-V follows to block idle CPUs to save energy and resources
[governor]
# There is a choice between three different governor policies:
# - hybrid: CPUs will spin for governor.spins before going to sleep when no work is available
# - idle: CPUs will sleep immediately when no work is available
# - busy: CPUs will never sleep
# In general, use idle when targeting minimum power usage, and busy when targeting maximum performance
# The default is hybrid as it provides a good balance between power and performance.
policy = "hybrid"
# Number of times a CPU will spin without sleeping in the "hybrid" policy.
# When "idle" or "busy" are selected, this setting is ignored
spins = 10000
# Debug options
[debug]
# Dump all the configuration options nOS-V is running with, its final parsed values and the
# path of the config file being used
dump_config = false
# Hardware Counters configuration
[hwcounters]
# Whether to print verbose information if a backend is enabled
verbose = false
# The enabled HWCounter backends. Possible options: "papi", "none"
backend = "none"
# The list of PAPI counters to read. By default only "PAPI_TOT_INS" and "PAPI_TOT_CYC"
papi_events = [
"PAPI_TOT_INS",
"PAPI_TOT_CYC"
]
# Enabling turbo will cause nOS-V to set architecture-specific optimization flags on every created
# or attached threads. In x86, this will cause the FTZ and DAZ flags of the SSE FPU to be enabled,
# causing a significant performance increase in floating-point applications, but disabling IEEE-754
# compatibility.
[turbo]
enabled = false
# Monitoring cappabilities and configuration.
[monitoring]
enabled = false
# Whether to print verbose information if monitoring is enabled
verbose = false
instrumentation.version = "ovni"