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| author | Kartik Agaram <vc@akkartik.com> | 2020-02-29 22:18:26 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-02-29 22:36:03 -0800 |
| commit | 3ac95f6a40d3bda989727ad7137d07e65ef4ac1d (patch) | |
| tree | 9cfb6ae13fa4340bacbd0a0ec982559f473298bb /055stream.subx | |
| parent | 7ae5b7136800ffb4f3d49777029a7cc9653ec029 (diff) | |
| download | mu-3ac95f6a40d3bda989727ad7137d07e65ef4ac1d.tar.gz | |
6072
I just did an experiment, and test_apps is spending over half its time (95 seconds that could be 40) redundantly clearing every stream before every test. And some of those streams are _large_; the translators for SubX and Mu use streams sizes pessimistically for the largest possible program they can handle (1MB per segment). A single test (the one in assort.subx) spends 24 seconds initializing 2 1MB-segments before processing a dozen lines of text in the blink of an eye. I'm not going to speed this up. But good to know.
Diffstat (limited to '055stream.subx')
| -rw-r--r-- | 055stream.subx | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/055stream.subx b/055stream.subx index 1250ffdc..15d82ce6 100644 --- a/055stream.subx +++ b/055stream.subx @@ -31,6 +31,8 @@ clear-stream: # f: (addr stream byte) c7 0/subop/copy 0/mod/direct 0/rm32/eax . . . . . 0/imm32 # copy to *eax # f->read = 0 c7 0/subop/copy 1/mod/*+disp8 0/rm32/eax . . . . 4/disp8 0/imm32 # copy to *(eax+4) + # - clear all stream data + # - this isn't strictly necessary, and it can slow things down *a lot*, but better safe than sorry. # var curr/eax: (addr byte) = f->data 81 0/subop/add 3/mod/direct 0/rm32/eax . . . . . 0xc/imm32 # add to eax $clear-stream:loop: |