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Jeff Epler 568636d562 run_background_tasks: Do nothing unless there has been a tick 
This improves performance of running python code by 34%, based
on the "pystone" benchmark on metro m4 express at 5000 passes
(1127.65 -> 1521.6 passes/second).

In addition, by instrumenting the tick function and monitoring on an
oscilloscope, the time actually spent in run_background_tasks() on
the metro m4 decreases from average 43% to 0.5%. (however, there's
some additional overhead that is moved around and not accounted for
in that "0.5%" figure, each time supervisor_run_background_tasks_if_tick
is called but no tick has occurred)

On the CPB, it increases pystone from 633 to 769, a smaller percentage
increase of 21%.  I did not measure the time actually spent in
run_background_tasks() on CPB.

Testing performed: on metro m4 and cpb, run pystone adapted from python3.4
(change time.time to time.monotonic for sub-second resolution)

Besides running a 5000 pass test, I also ran a 50-pass test while
scoping how long an output pin was set.  Average: 34.59ms or 1445/s on m4,
67.61ms or 739/s on cbp, both matching the other pystone result reasonably
well.

import pystone
import board
import digitalio
import time

d = digitalio.DigitalInOut(board.D13)
d.direction = digitalio.Direction.OUTPUT

while True:
    d.value = 0
    time.sleep(.01)
    d.value = 1
    pystone.main(50)
2019-11-18 11:26:48 -06:00
..
argcheck.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
asmarm.c
py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func.
2018-02-24 23:10:20 +11:00
asmarm.h
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
asmbase.c
py/asmbase: Revert removal of clearing of label offsets for native emit.
2017-12-08 19:07:00 +11:00
asmbase.h
py/asm: Remove need for dummy_data when doing initial assembler passes.
2016-12-09 22:50:58 +11:00
asmthumb.c
py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func.
2018-02-24 23:10:20 +11:00
asmthumb.h
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
asmx64.c
py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func.
2018-02-24 23:10:20 +11:00
asmx64.h
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
asmx86.c
py/asm*.c: Remove unnecessary check for num_locals<0 in asm entry func.
2018-02-24 23:10:20 +11:00
asmx86.h
WIP: complete manual inspection of all significant changes
2018-07-23 21:34:25 -04:00
asmxtensa.c
py/asm: Remove need for dummy_data when doing initial assembler passes.
2016-12-09 22:50:58 +11:00
asmxtensa.h
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
bc0.h
py: Clean up unary and binary enum list to keep groups together.
2017-10-05 10:49:44 +11:00
bc.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
bc.h
all: Remove inclusion of internal py header files.
2017-10-04 12:37:50 +11:00
binary.c
mp_binary_get_int: avoid undefined behavior
2019-10-08 10:48:25 +09:00
binary.h
py/binary: Change internal bytearray typecode from 0 to 1.
2017-08-17 16:19:35 +10:00
builtin.h
py/builtinhelp: Change signature of help text var from pointer to array.
2017-09-12 16:03:52 +10:00
builtinevex.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
builtinhelp.c
Fix output overflow and make help translatable
2018-11-09 16:41:08 -08:00
builtinimport.c
modsys: exc_info: Add traceback
2018-10-07 19:37:49 +02:00
circuitpy_defns.mk
Refine _bleio
2019-10-21 18:57:03 -07:00
circuitpy_mpconfig.h
run_background_tasks: Do nothing unless there has been a tick
2019-11-18 11:26:48 -06:00
circuitpy_mpconfig.mk
Allow boards to enable the micropython.native decorator
2019-11-05 14:27:53 -08:00
compile.c
Allow boards to enable the micropython.native decorator
2019-11-05 14:27:53 -08:00
compile.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
emit.h
py/emit: Combine setup with/except/finally into one emit function.
2018-05-23 00:35:16 +10:00
emitbc.c
py/emit: Combine setup with/except/finally into one emit function.
2018-05-23 00:35:16 +10:00
emitcommon.c
py/emit: Combine name and global into one func for load/store/delete.
2018-05-23 00:22:47 +10:00
emitglue.c
Validate raw code and mpy read length
2019-06-25 17:54:27 -07:00
emitglue.h
py/emitglue: When assigning bytecode only pass bytecode len if needed.
2018-02-14 18:41:17 +11:00
emitinlinethumb.c
fix compilation errors in emitinlinethumb.c
2018-10-07 02:09:44 +03:00
emitinlinextensa.c
Fix esp and samd
2018-08-16 17:41:35 -07:00
emitnarm.c
py: Refactor how native emitter code is compiled with a file per arch.
2018-04-10 15:06:47 +10:00
emitnative.c
Allow boards to enable the micropython.native decorator
2019-11-05 14:27:53 -08:00
emitnthumb.c
py: Refactor how native emitter code is compiled with a file per arch.
2018-04-10 15:06:47 +10:00
emitnx64.c
py: Refactor how native emitter code is compiled with a file per arch.
2018-04-10 15:06:47 +10:00
emitnx86.c
py/emitnx86: Fix 32-bit x86 native emitter build by including header.
2018-05-04 20:39:16 +10:00
emitnxtensa.c
py: Refactor how native emitter code is compiled with a file per arch.
2018-04-10 15:06:47 +10:00
formatfloat.c
py/formatfloat: Fix case where floats could render with negative digits.
2018-03-01 17:00:02 +11:00
formatfloat.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
frozenmod.c
merge finished
2018-07-28 13:29:47 -04:00
frozenmod.h
Fix issue #207, esp8266 file operations problems (#222)
2017-09-01 16:12:26 -04:00
gc_long_lived.c
Never long live the main dictionary.
2019-02-01 16:05:37 -08:00
gc_long_lived.h
Introduce a long lived section of the heap.
2018-01-24 10:33:46 -08:00
gc.c
gc_alloc: Remove redundant 'collected' assignment
2019-10-08 10:54:13 +09:00
gc.h
Include display objects in gc.
2019-06-06 17:49:32 -04:00
grammar.h
py/compile: Combine expr, xor_expr and and_expr into one function.
2018-06-22 17:00:29 +10:00
ioctl.h
Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master.
2017-08-25 22:17:07 -04:00
lexer.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
lexer.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
makemoduledefs.py
Add files via upload
2019-04-05 21:38:32 +02:00
makeqstrdata.py
makeqstrdata: permit longer "compressed" outputs
2019-08-06 07:39:09 -05:00
makeqstrdefs.py
Update filter and handle nested quotes
2018-08-09 14:16:28 -07:00
makeversionhdr.py
Support internationalisation.
2018-08-07 14:58:57 -07:00
malloc.c
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
map.c
py/map: Don't include ordered-dict mutating code when not needed.
2017-12-19 13:37:15 +11:00
misc.h
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
mkenv.mk
Use python3 for mpy-tool
2018-10-18 10:37:42 -07:00
mkrules.mk
Update mkrules.mk
2019-04-05 21:41:40 +02:00
modarray.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
modbuiltins.c
Enable MICROPY_PY_BUILTINS_ROUND_INT; make round() work beter when it's disabled as well
2019-05-17 15:56:40 -04:00
modcmath.c
py: Change obsolete "///" comment formatting to normal comments.
2017-08-30 21:02:00 +10:00
modcollections.c
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
modgc.c
py: Change obsolete "///" comment formatting to normal comments.
2017-08-30 21:02:00 +10:00
modio.c
More make_new updates
2019-01-18 17:09:56 -08:00
modmath.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
modmicropython.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
modstruct.c
Improve struct compatibility with CPython
2019-01-20 15:12:34 -05:00
modsys.c
modsys: exc_info: Add traceback
2018-10-07 19:37:49 +02:00
modthread.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
moduerrno.c
Add CIRCUITPY macro; rename u* only when CIRCUITPY=1
2019-02-21 11:09:44 -05:00
mpconfig.h
Add CIRCUITPY macro; rename u* only when CIRCUITPY=1
2019-02-21 11:09:44 -05:00
mperrno.h
Support OSError attributes
2018-11-13 22:04:44 +01:00
mphal.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
mpprint.c
py/mpprint: Fix "%x" vs "%X" regression introduced in previous commit.
2017-12-07 10:31:14 +02:00
mpprint.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
mpstate.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
mpstate.h
Reorganize board busses into shared-bindings and shared-module.
2019-04-08 16:58:50 -07:00
mpthread.h
all: Unify header guard usage.
2017-07-18 11:57:39 +10:00
mpz.c
py/mpz: Avoid undefined behavior at integer overflow in mpz_hash.
2018-05-21 12:48:26 +10:00
mpz.h
py/mpz: Simplify handling of borrow and quo adjustment in mpn_div.
2017-12-29 14:05:48 +11:00
nativeglue.c
py/emit: Merge build set/slice into existing build emit function.
2018-05-23 00:23:36 +10:00
nlr.c
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
nlr.h
restructure nlr.h for udefined archtectures
2019-10-14 07:02:32 -04:00
nlrsetjmp.c
py/nlr: Factor out common NLR code to macro and generic funcs in nlr.c.
2017-12-28 16:46:30 +11:00
nlrthumb.c
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
nlrx64.c
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
nlrx86.c
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
nlrxtensa.c
continued WIP: almost compiling
2018-07-12 14:13:51 -04:00
obj.c
In py/, must guard uses of RUN_BACKGROUND_TASKS
2019-09-11 21:15:10 -05:00
obj.h
bleio: API change to create and connect related objects simulatenously: no orphan bleio objects
2019-08-28 16:15:09 -04:00
objarray.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objarray.h
py/objarray: Replace 0x80 with new MP_OBJ_ARRAY_TYPECODE_FLAG_RW macro.
2018-06-18 13:40:53 +10:00
objattrtuple.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
objbool.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objboundmeth.c
py/objboundmeth: Support __func__ property as in CPython
2018-10-07 19:36:24 +02:00
objcell.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
objclosure.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
objcomplex.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objdeque.c
More make_new fixes for unix build
2019-01-18 11:53:09 -08:00
objdict.c
Fix dict_make_new
2019-01-20 17:32:43 -08:00
objenumerate.c
fixup micropy
2019-01-14 18:09:02 -08:00
objexcept.c
Make MpyError a ValueError (since that's what it was before)
2019-05-08 13:58:31 -07:00
objexcept.h
py/objexcept: Make MP_DEFINE_EXCEPTION public so ports can define excs.
2018-03-17 00:31:40 +11:00
objfilter.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objfloat.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objfun.c
Fix bad call to mp_arg_check_num
2019-11-05 17:49:47 -08:00
objfun.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
objgenerator.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
objgenerator.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
objgetitemiter.c
all: Remove inclusion of internal py header files.
2017-10-04 12:37:50 +11:00
objint_longlong.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
objint_mpz.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
objint.c
use approx of original @godlygeek code for smallints; add tests
2019-05-12 11:17:29 -04:00
objint.h
Handle truth values; speed up smallint checks
2019-05-12 00:10:53 -04:00
objlist.c
WIP: rework of Characteristic properties; enhance Descriptor; not tested
2019-08-02 17:57:31 -04:00
objlist.h
py/obj.h: Move declaration of mp_obj_list_init to objlist.h.
2018-03-13 14:03:15 +11:00
objmap.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objmodule.c
Update objmodule.c
2019-04-05 21:40:28 +02:00
objmodule.h
py/objmodule: Factor common code for calling __init__ on builtin module.
2018-02-20 17:56:58 +11:00
objnamedtuple.c
Check for null kw_args
2019-01-20 16:18:34 -08:00
objnamedtuple.h
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objnone.c
all: Remove inclusion of internal py header files.
2017-10-04 12:37:50 +11:00
objobject.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objpolyiter.c
all: Remove inclusion of internal py header files.
2017-10-04 12:37:50 +11:00
objproperty.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objproperty.h
Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master.
2017-08-25 22:17:07 -04:00
objrange.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objreversed.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objset.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objsingleton.c
all: Remove inclusion of internal py header files.
2017-10-04 12:37:50 +11:00
objslice.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objstr.c
Switch arg check back to allow ignored args for strings
2019-10-14 19:59:23 -07:00
objstr.h
cleanup adapter.address; add uniquish suffix to BLE device name
2019-07-31 00:30:24 -04:00
objstringio.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
objstringio.h
py/objstringio: If created from immutable object, follow copy on write policy.
2017-06-09 17:33:01 +03:00
objstrunicode.c
extmod/ure: Support search/match() pos and endpos parameters
2019-02-14 15:42:28 +01:00
objtuple.c
py: mp_obj_tuple_get: accept any item which can use tuple_getiter
2019-08-10 10:10:41 -05:00
objtuple.h
WIP: works with just keyboard but not complex report descriptor
2018-03-30 23:24:00 -04:00
objtype.c
mp_obj_instance_make_new: clearer way to avoid null pointer dereference
2019-10-10 13:25:24 +09:00
objtype.h
Check native object in case of early access
2019-05-13 17:31:30 -07:00
objzip.c
py changes for supporting superclass constructors that take kwargs
2019-01-14 17:29:19 -08:00
opmethods.c
py/runtime: Add MP_BINARY_OP_CONTAINS as reverse of MP_BINARY_OP_IN.
2017-11-24 14:48:23 +11:00
parse.c
Two fixes and translate more strings.
2018-08-09 13:29:30 -07:00
parse.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
parsenum.c
Compress all translated strings with Huffman coding.
2018-08-16 17:40:57 -07:00
parsenum.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
parsenumbase.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
parsenumbase.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
persistentcode.c
Validate raw code and mpy read length
2019-06-25 17:54:27 -07:00
persistentcode.h
py: Factor out persistent-code reader into separate files.
2016-11-16 18:13:50 +11:00
py.mk
Uncomment vm.c SUPEROPT (debugging typo); trim a few builds
2019-06-12 13:09:09 -04:00
pystack.c
py/pystack: Use "pystack exhausted" as error msg for out of pystack mem.
2018-02-19 00:26:14 +11:00
pystack.h
py: Introduce a Python stack for scoped allocation.
2017-12-11 13:49:09 +11:00
qstr.c
Compress all translated strings with Huffman coding.
2018-08-16 17:40:57 -07:00
qstr.h
Support internationalisation.
2018-08-07 14:58:57 -07:00
qstrdefs.h
py/pystack: Use "pystack exhausted" as error msg for out of pystack mem.
2018-02-19 00:26:14 +11:00
reader.c
py/reader: Allow MICROPY_VFS_POSIX to work with MICROPY_READER_POSIX.
2018-06-06 14:28:23 +10:00
reader.h
py: Allow lexer to raise exceptions during construction.
2017-03-14 11:52:05 +11:00
reload.c
move reload exception to reload.c
2018-05-14 17:41:17 -04:00
reload.h
move reload exception to reload.c
2018-05-14 17:41:17 -04:00
repl.c
Merge pull request #1859 from scottbelden/tabbing
2019-05-08 14:49:11 -04:00
repl.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
ringbuf.h
Refine _bleio
2019-10-21 18:57:03 -07:00
runtime0.h
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
runtime_utils.c
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
runtime.c
Use OverflowError exception type for overflows
2019-05-09 03:22:26 -04:00
runtime.h
Use OverflowError exception type for overflows
2019-05-09 03:22:26 -04:00
scheduler.c
py: Add micropython.schedule() function and associated runtime code.
2017-03-20 15:20:26 +11:00
scope.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
scope.h
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
sequence.c
Use generic overflow so 64 bit is handled ok.
2019-02-04 16:11:16 -08:00
showbc.c
mp_bytecode_print_str: avoid undefined behavior
2019-10-08 11:16:11 +09:00
smallint.c
all: Use the name MicroPython consistently in comments
2017-07-31 18:35:40 +10:00
smallint.h
py: Extend nan-boxing config to have 47-bit small integers.
2017-12-11 22:39:12 +11:00
stackctrl.c
WIP: after merge; before testing
2018-07-11 16:45:30 -04:00
stackctrl.h
Initial merge of micropython v1.9.2 into circuitpython 2.0.0 (in development) master.
2017-08-25 22:17:07 -04:00
stream.c
In py/, must guard uses of RUN_BACKGROUND_TASKS
2019-09-11 21:15:10 -05:00
stream.h
Support print("", flush=True)
2019-02-15 16:53:19 -08:00
unicode.c
py/unicode: Clean up utf8 funcs and provide non-utf8 inline versions.
2018-02-14 18:19:22 +11:00
unicode.h
py/objstr: Add check for valid UTF-8 when making a str from bytes.
2017-09-06 16:43:09 +10:00
vm.c
Refine _bleio
2019-10-21 18:57:03 -07:00
vmentrytable.h
Turn on MICROPY_OPT_COMPUTED_GOTO for 5x CPU-bound speedup
2019-06-11 12:43:48 -04:00
vstr.c
py/vstr: Raise a RuntimeError if fixed vstr buffer overflows.
2017-09-21 20:29:41 +10:00
warning.c
py: Add config option to print warnings/errors to stderr.
2017-09-26 11:59:11 +10:00