Commit Graph

6205 Commits

Author SHA1 Message Date
Damien George 3096928d5a unix: Disable the GIL to improve performance of non-thread code.
Threading support is still very new so stay conservative at this point
and enable threading without the GIL.  This requires users to protect
concurrent access of mutatable Python objects (eg lists) with locks at
the Python level (something you should probably do anyway).  The
advantage is that there is less of a performance hit for non-threaded
code, because the VM does not need to constantly release/acquire the GIL.

In the future the GIL will be made more efficient.  There is also room to
improve the efficiency of non-GIL code by not using mutex's if there is
only one thread active.
2016-07-09 16:48:06 +01:00
Paul Sokolovsky 520f35632d unix/main: When preparing sys.path, allocate exact strings on uPy heap.
Due to the way modern compilers work (allocating space for stack vars once
at tha start of function, and deallocating once on exit from), using
intermediate stack buffer of big size caused blockage of 4K (PATH_MAX)
on stack for the entire duration of MicroPython execution.
2016-07-09 01:48:07 +03:00
Paul Sokolovsky 649b69a1db unix/main: Improve help for -X options a bit. 2016-07-08 20:53:08 +03:00
Paul Sokolovsky 0e5e14fe7c unix/main: Error out on unknown value of suffix in -X heapsize= option.
E.g. -X heapsize=16Kfoo, -X heapsize=1G will lead to error.
2016-07-08 20:49:41 +03:00
Paul Sokolovsky a4c8a1ffe8 extmod/moduos_dupterm: Reuse dupterm_arr_obj for write operations.
Instead of allocating new array object header again and again, causing
memory fragmentation.
2016-07-07 02:16:24 +03:00
Paul Sokolovsky ec7fe92531 py/objarray: Split out header to allow direct access to object.
This follows source code/header file organization similar to few other
objects, and intended to be used only is special cases, where efficiency/
simplicity matters.
2016-07-06 18:19:27 +03:00
Paul Sokolovsky 380561836d esp8266/esp_mphal: Properly handle dupterm EOF after switching to readinto(). 2016-07-05 14:18:12 +03:00
Paul Sokolovsky a22b6ebff1 esp8266/esp_mphal: call_dupterm_read: Use readinto() method.
It's memory fragmentation hazard to allocate 1-char string each time by
calling read() method.
2016-07-04 21:34:40 +03:00
Paul Sokolovsky e07ef8f1a2 esp8266/main: Init recently added dupterm_arr_obj port state var. 2016-07-04 17:40:26 +03:00
Paul Sokolovsky 426112ce88 extmod/moduos_dupterm: Reserve buffer bytearray object for dupterm.
Allocating it for each read/write operation is a memory fragmentation
hazard.
2016-07-04 13:32:30 +03:00
Paul Sokolovsky d83177b248 unix/mpconfigport_minimal.h: Allow to print a string within 1KB of heap.
By adjusting parser allocation policy.
2016-07-03 00:12:46 +03:00
Paul Sokolovsky e965d2b82a unix/Makefile: Make "minimal" build be minimal again. 2016-07-03 00:10:58 +03:00
Paul Sokolovsky 4cfe3e84b0 esp8266/README: Promote from "highly experimental" to "experimental". 2016-07-02 23:14:22 +03:00
Paul Sokolovsky b8f45166c6 esp8266: Switch webrepl to use frozen bytecode. 2016-07-02 22:45:31 +03:00
Paul Sokolovsky dec51e3519 esp8266: Switch webrepl_setup to use frozen bytecode. 2016-07-02 22:40:16 +03:00
Paul Sokolovsky 686367dcfc esp8266: Explicitly collect garbage in bootstrap scripts.
Leads to less fragmentation at teh time user code starts.
2016-07-02 19:22:55 +03:00
Paul Sokolovsky 417dc0c05d extmod/modbtree: Fixes for nanbox build. 2016-07-02 15:58:13 +03:00
Paul Sokolovsky 43241ceaac unix: Enable btree module.
But disable it for coverage build, as its extra warninsg aren't compatible
with K&R C BerkeleyDB uses.
2016-07-02 15:26:07 +03:00
Paul Sokolovsky b09cd0e1ec extmod/modbtree: Fix unused argument warning. 2016-07-02 15:21:54 +03:00
Paul Sokolovsky 737bd9c314 py/mpconfig.h: Mention MICROPY_PY_BTREE config option.
However, as it requires linking with external libraries, it actually
should be ste on Makefile level.
2016-07-02 14:57:42 +03:00
Paul Sokolovsky ae184cb9de py/builtinimport: Disable "imported as namespace package" warning.
Namespace packages are natural part of Python3, CPython3 doesn't have such
warning, it made sense only from point of view of Python2 legacy.
2016-07-02 14:45:49 +03:00
Paul Sokolovsky c880f91ac0 extmod/modwebrepl: Add readinto() method. 2016-07-02 14:05:37 +03:00
Paul Sokolovsky 03b0279c6d extmod/modwebsocket: Add readinto() method. 2016-07-02 14:03:49 +03:00
Paul Sokolovsky 92a9078a6f tests/meminfo: Update for addition of "max free sz" output. 2016-07-01 00:39:26 +03:00
Paul Sokolovsky 749cbaca7f py/gc: Calculate (and report) maximum contiguous free block size.
Just as maximum allocated block size, it's reported in allocation units
(not bytes).
2016-07-01 00:09:55 +03:00