Rework display loop maxmin-ing with `Viz` pipelining
First, we rename what was `chart_maxmin()` -> `multi_maxmin()` and don't `partial` it in to the `DisplayState`, just call it with correct `Viz` ref inputs. Second, as we've done with `ChartView.maybe_downsample_graphics()` use the output from the main `Viz.update_graphics()` and feed it to the `.maxmin()` calls for the ohlc and vlm chart but still deliver the same output signature as prior. Also accept and use an optional profiler input, drop `DisplayState.maxmin()` and add `.vlm_viz`. Further perf related tweak to do with more efficient incremental updates: - only call `multi_maxmin()` if the main fast chart viz does a pixel column step. - mask out hist viz and vlm viz and all linked fsp `._set_yrange()` calls for now until we figure out how to best optimize these updates when considering the new group-scaled-by-% style for multicharts. - drop `.enable_auto_yrange()` calls during startup.overlays_interaction_latency_tuning
Tyler Goodlet
parent
9780263cfa
commit
8b5b1c214b
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@ -25,7 +25,10 @@ from functools import partial
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import itertools
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from math import floor
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import time
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from typing import Optional, Any, Callable
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from typing import (
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Optional,
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Any,
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)
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import tractor
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import trio
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@ -87,10 +90,11 @@ log = get_logger(__name__)
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# approach, likely with ``numba``:
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# https://arxiv.org/abs/cs/0610046
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# https://github.com/lemire/pythonmaxmin
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def chart_maxmin(
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def multi_maxmin(
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i_read_range: tuple[int, int] | None,
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fast_viz: Viz,
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fqsn: str,
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vlm_viz: Viz | None = None,
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profiler: Profiler = None,
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) -> tuple[
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@ -104,26 +108,32 @@ def chart_maxmin(
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Compute max and min datums "in view" for range limits.
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'''
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out = fast_viz.maxmin()
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out = fast_viz.maxmin(
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i_read_range=i_read_range,
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)
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if out is None:
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# log.warning(f'No yrange provided for {name}!?')
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return (0, 0, 0)
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(
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ixrng,
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read_slc,
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mxmn,
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yrange,
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) = out
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mn, mx = mxmn
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if profiler:
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profiler('fast_viz.maxmin({read_slice})')
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mx_vlm_in_view = 0
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mn, mx = yrange
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# TODO: we need to NOT call this to avoid a manual
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# np.max/min trigger and especially on the vlm_chart
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# vizs which aren't shown.. like vlm?
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mx_vlm_in_view = 0
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if vlm_viz:
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out = vlm_viz.maxmin()
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out = vlm_viz.maxmin(
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i_read_range=i_read_range,
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)
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if out:
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(
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ixrng,
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@ -132,9 +142,16 @@ def chart_maxmin(
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) = out
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mx_vlm_in_view = mxmn[1]
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if profiler:
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profiler('vlm_viz.maxmin({read_slc})')
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return (
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mx,
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max(mn, 0), # presuming price can't be negative?
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# enforcing price can't be negative?
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# TODO: do we even need this?
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max(mn, 0),
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mx_vlm_in_view, # vlm max
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)
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@ -148,7 +165,6 @@ class DisplayState(Struct):
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godwidget: GodWidget
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quotes: dict[str, Any]
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maxmin: Callable
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flume: Flume
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# high level chart handles and underlying ``Viz``
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@ -162,6 +178,8 @@ class DisplayState(Struct):
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last_price_sticky: YAxisLabel
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hist_last_price_sticky: YAxisLabel
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vlm_viz: Viz
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# misc state tracking
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vars: dict[str, Any] = field(
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default_factory=lambda: {
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@ -238,21 +256,22 @@ async def increment_history_view(
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is_1m=True,
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)
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if do_px_step:
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hist_viz.update_graphics()
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profiler('`hist Viz.update_graphics()` call')
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if liv:
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hist_viz.plot.vb._set_yrange(viz=hist_viz)
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profiler('hist chart yrange view')
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# check if tread-in-place view x-shift is needed
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if should_tread:
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# ensure path graphics append is shown on treads since
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# the main rt loop does not call this.
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hist_viz.update_graphics()
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profiler('`hist Viz.update_graphics()` call')
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hist_chart.increment_view(datums=append_diff)
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profiler('hist tread view')
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if (
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do_px_step
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and liv
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):
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hist_viz.plot.vb._set_yrange(viz=hist_viz)
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profiler.finish()
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async def graphics_update_loop(
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@ -331,17 +350,15 @@ async def graphics_update_loop(
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vlm_chart = vlm_charts[fqsn]
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vlm_viz = vlm_chart._vizs.get('volume') if vlm_chart else None
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maxmin = partial(
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chart_maxmin,
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fast_viz,
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fqsn,
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vlm_viz,
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)
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(
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last_mx,
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last_mn,
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last_mx_vlm,
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) = maxmin()
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) = multi_maxmin(
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None,
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fast_viz,
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vlm_viz,
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)
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last, volume = ohlcv.array[-1][['close', 'volume']]
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@ -372,7 +389,7 @@ async def graphics_update_loop(
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'fqsn': fqsn,
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'godwidget': godwidget,
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'quotes': {},
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'maxmin': maxmin,
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# 'maxmin': maxmin,
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'flume': flume,
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@ -384,6 +401,8 @@ async def graphics_update_loop(
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'hist_viz': hist_viz,
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'hist_last_price_sticky': hist_last_price_sticky,
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'vlm_viz': vlm_viz,
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'l1': l1,
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'vars': {
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@ -491,11 +510,10 @@ def graphics_update_cycle(
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# or at least a little `mypyc` B)
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# - pass more direct refs as input to avoid so many attr accesses?
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# - use a streaming minmax algo and drop the use of the
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# state-tracking ``chart_maxmin()`` routine from above?
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# state-tracking ``multi_maxmin()`` routine from above?
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fqsn = ds.fqsn
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chart = ds.chart
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hist_chart = ds.hist_chart
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vlm_chart = ds.vlm_chart
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varz = ds.vars
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@ -519,25 +537,19 @@ def graphics_update_cycle(
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do_rt_update,
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should_tread,
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) = main_viz.incr_info(ds=ds)
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profiler('`.incr_info()`')
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# TODO: we should only run mxmn when we know
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# an update is due via ``do_px_step`` above.
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(
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mx_in_view,
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mn_in_view,
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mx_vlm_in_view,
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) = ds.maxmin()
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mx = mx_in_view + tick_margin
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mn = mn_in_view - tick_margin
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profiler('`ds.maxmin()` call')
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# TODO: eventually we want to separate out the dark vlm and show
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# them as an additional graphic.
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clear_types = _tick_groups['clears']
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mx = varz['last_mx']
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mn = varz['last_mn']
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mx_vlm_in_view = varz['last_mx_vlm']
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# update ohlc sampled price bars
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if (
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# do_rt_update
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@ -545,9 +557,24 @@ def graphics_update_cycle(
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(liv and do_px_step)
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or trigger_all
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):
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main_viz.update_graphics(array_key=fqsn)
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i_read_range, _ = main_viz.update_graphics()
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profiler('`Viz.update_graphics()` call')
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(
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mx_in_view,
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mn_in_view,
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mx_vlm_in_view,
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) = multi_maxmin(
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i_read_range,
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main_viz,
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ds.vlm_viz,
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profiler,
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)
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mx = mx_in_view + tick_margin
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mn = mn_in_view - tick_margin
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profiler('{fqsdn} `multi_maxmin()` call')
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# don't real-time "shift" the curve to the
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# left unless we get one of the following:
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if (
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@ -717,15 +744,21 @@ def graphics_update_cycle(
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is_1m=True,
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)
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profiler('hist `Viz.incr_info()`')
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if (
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hist_liv
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and not hist_chart._static_yrange == 'axis'
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):
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hist_viz.plot.vb._set_yrange(
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viz=hist_viz,
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# yrange=yr, # this is the rt range, not hist.. XD
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)
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profiler('hist vb y-autorange')
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# TODO: track local liv maxmin without doing a recompute all the
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# time..plut, just generally the user is more likely to be
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# zoomed out enough on the slow chart that this is never an
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# issue (the last datum going out of y-range).
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# hist_chart = ds.hist_chart
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# if (
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# hist_liv
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# and not hist_chart._static_yrange == 'axis'
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# ):
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# hist_viz.plot.vb._set_yrange(
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# viz=hist_viz,
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# # yrange=yr, # this is the rt range, not hist.. XD
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# )
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# profiler('hist vb y-autorange')
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# XXX: update this every draw cycle to ensure y-axis auto-ranging
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# only adjusts when the in-view data co-domain actually expands or
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@ -816,10 +849,10 @@ def graphics_update_cycle(
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if (
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mx_vlm_in_view != varz['last_mx_vlm']
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):
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vlm_yr = (0, mx_vlm_in_view * 1.375)
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vlm_chart.view._set_yrange(yrange=vlm_yr)
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profiler('`vlm_chart.view._set_yrange()`')
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varz['last_mx_vlm'] = mx_vlm_in_view
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# vlm_yr = (0, mx_vlm_in_view * 1.375)
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# vlm_chart.view._set_yrange(yrange=vlm_yr)
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# profiler('`vlm_chart.view._set_yrange()`')
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# update all downstream FSPs
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for curve_name, viz in vlm_vizs.items():
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@ -845,13 +878,12 @@ def graphics_update_cycle(
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# is this even doing anything?
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# (pretty sure it's the real-time
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# resizing from last quote?)
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fvb = viz.plot.vb
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# XXX: without this we get completely
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# mangled/empty vlm display subchart..
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fvb._set_yrange(
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viz=viz,
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)
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# fvb = viz.plot.vb
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# fvb._set_yrange(
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# viz=viz,
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# )
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profiler(f'vlm `Viz[{viz.name}].plot.vb._set_yrange()`')
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# even if we're downsampled bigly
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@ -1195,9 +1227,8 @@ async def display_symbol_data(
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# ensure the last datum graphic is generated
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# for zoom-interaction purposes.
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hist_chart.get_viz(fqsn).draw_last(
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array_key=fqsn,
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)
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hist_viz = hist_chart.get_viz(fqsn)
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hist_viz.draw_last(array_key=fqsn)
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pis.setdefault(fqsn, [None, None])[1] = hist_chart.plotItem
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# don't show when not focussed
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@ -1211,6 +1242,7 @@ async def display_symbol_data(
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# to avoid internal pane creation.
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sidepane=pp_pane,
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)
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rt_viz = rt_chart.get_viz(fqsn)
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pis.setdefault(fqsn, [None, None])[0] = rt_chart.plotItem
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# for pause/resume on mouse interaction
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@ -1227,7 +1259,7 @@ async def display_symbol_data(
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and has_vlm(ohlcv)
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and vlm_chart is None
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):
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vlm_charts[fqsn] = await ln.start(
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vlm_chart = vlm_charts[fqsn] = await ln.start(
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open_vlm_displays,
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rt_linked,
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flume,
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@ -1283,7 +1315,7 @@ async def display_symbol_data(
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# are none?
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hist_pi.hideAxis('left')
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viz = hist_chart.draw_curve(
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hist_viz = hist_chart.draw_curve(
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fqsn,
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hist_ohlcv,
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flume,
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@ -1298,7 +1330,7 @@ async def display_symbol_data(
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# ensure the last datum graphic is generated
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# for zoom-interaction purposes.
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viz.draw_last(array_key=fqsn)
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hist_viz.draw_last(array_key=fqsn)
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hist_pi.vb.maxmin = partial(
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hist_chart.maxmin,
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@ -1308,8 +1340,8 @@ async def display_symbol_data(
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# specially store ref to shm for lookup in display loop
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# since only a placeholder of `None` is entered in
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# ``.draw_curve()``.
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viz = hist_chart._vizs[fqsn]
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assert viz.plot is hist_pi
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hist_viz = hist_chart._vizs[fqsn]
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assert hist_viz.plot is hist_pi
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pis.setdefault(fqsn, [None, None])[1] = hist_pi
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rt_pi = rt_chart.overlay_plotitem(
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@ -1320,7 +1352,7 @@ async def display_symbol_data(
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rt_pi.hideAxis('left')
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rt_pi.hideAxis('bottom')
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viz = rt_chart.draw_curve(
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rt_viz = rt_chart.draw_curve(
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fqsn,
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ohlcv,
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flume,
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@ -1341,8 +1373,8 @@ async def display_symbol_data(
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# specially store ref to shm for lookup in display loop
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# since only a placeholder of `None` is entered in
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# ``.draw_curve()``.
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viz = rt_chart._vizs[fqsn]
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assert viz.plot is rt_pi
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rt_viz = rt_chart._vizs[fqsn]
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assert rt_viz.plot is rt_pi
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pis.setdefault(fqsn, [None, None])[0] = rt_pi
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rt_chart.setFocus()
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@ -1410,17 +1442,16 @@ async def display_symbol_data(
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rt_linked.mode = mode
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viz = rt_chart.get_viz(order_ctl_symbol)
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viz.plot.setFocus()
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rt_viz = rt_chart.get_viz(order_ctl_symbol)
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rt_viz.plot.setFocus()
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# default view adjuments and sidepane alignment
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# as final default UX touch.
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rt_chart.default_view()
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rt_chart.view.enable_auto_yrange()
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await trio.sleep(0)
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hist_chart.default_view()
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hist_chart.view.enable_auto_yrange()
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hist_viz = hist_chart.get_viz(fqsn)
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await trio.sleep(0)
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godwidget.resize_all()
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Reference in New Issue