Reloading script always increases memory consumption

[Ichunjo]

The tests I did so far:

• Looking at memory used after each reloading on Task Manager
• Printing the length of gc.get_objects() after each reloading

it's getting worse as script complexity increases and a large number of outputs are previewed.

[Setsugennoao]

it most likely isn't related to vspreview but rather a package you're using is holding a hard reference to the core and it's not getting destroyed, if you provide a sample script i can check

[Ichunjo]

import gc
from vapoursynth import core

clip = core.bs.VideoSource(r"")
print(len(gc.get_objects()))
clip.set_output()

[Setsugennoao]

what plugins have you got?

[Ichunjo]

adg               |  moe.kageru.adaptivegrain                |  Adaptive grain
akarin            |  info.akarin.vsplugin                    |  Akarin's Experimental Filters
average           |  eoe-nephren.average                     |  vs-average
avs               |  com.vapoursynth.avisynth                |  VapourSynth Avisynth Compatibility
bas               |  com.vapoursynth.bestaudiosource         |  Best Audio Source
bilateral         |  mawen1250.Bilateral                     |  Bilateral filter and Gaussian filter for VapourSynth.
bilateralgpu      |  com.wolframrhodium.bilateralgpu         |  Bilateral filter using CUDA
bilateralgpu_rtc  |  com.wolframrhodium.bilateralgpu_rtc     |  Bilateral filter using CUDA (NVRTC)
bm3d              |  com.vapoursynth.bm3d                    |  Implementation of BM3D denoising filter for VapourSynth.
bm3dcpu           |  com.wolframrhodium.bm3dcpu              |  BM3D algorithm implemented in AVX and AVX2 intrinsics
bm3dcuda          |  com.wolframrhodium.bm3dcuda             |  BM3D algorithm implemented in CUDA
bm3dcuda_rtc      |  com.wolframrhodium.bm3dcuda_rtc         |  BM3D algorithm implemented in CUDA (NVRTC)
bore              |  ng.opusga.bore                          |  bore plugin
bs                |  com.vapoursynth.bestsource              |  Best Source 2
cas               |  com.holywu.cas                          |  Contrast Adaptive Sharpening
cs                |  moe.grass.carefulsource                 |  carefulsource
descale           |  tegaf.asi.xe                            |  Undo linear interpolation
dfttest           |  com.holywu.dfttest                      |  2D/3D frequency domain denoiser
dgdecodenv        |  com.vapoursynth.dgdecodenv              |  DGDecodeNV for VapourSynth
dmetrics          |  com.vapoursynth.dmetrics                |  Decomb Metrics
dpid              |  com.wolframrhodium.dpid                 |  Rapid, Detail-Preserving Image Downscaling
edgefixer         |  the.weather.channel                     |  ultraman
eedi3             |  com.vapoursynth.eedi3                   |  EEDI3
eedi3m            |  com.holywu.eedi3                        |  Enhanced Edge Directed Interpolation 3
fb                |  com.nodame.fillborders                  |  FillBorders plugin for VapourSynth
ffms2             |  com.vapoursynth.ffms2                   |  FFmpegSource 2 for VapourSynth
fh                |  com.nodame.fieldhint                    |  FieldHint Plugin
fmtc              |  fmtconv                                 |  Format converter
grain             |  com.holywu.addgrain                     |  Random noise film grain generator
hist              |  com.nodame.histogram                    |  VapourSynth Histogram Plugin
imwri             |  com.vapoursynth.imwri                   |  VapourSynth ImageMagick 7 HDRI Writer/Reader
knlm              |  com.Khanattila.KNLMeansCL               |  KNLMeansCL for VapourSynth
libp2p            |  com.djatom.libp2p                       |  libp2p rgb formats packer/unpacker
lsmas             |  systems.innocent.lsmas                  |  LSMASHSource for VapourSynth
misc              |  com.vapoursynth.misc                    |  Miscellaneous filters
mv                |  com.nodame.mvtools                      |  MVTools v23
mvsf              |  com.nodame.mvsf                         |  MVTools Single Precision
ncnn              |  io.github.amusementclub.vs_ncnn         |  NCNN ML Filter Runtime
neo_dfttest       |  in.7086.neo_dfttest                     |  Neo DFTTest Deband Filter r8 - 2D/3D frequency domain denoiser
neo_f3kdb         |  in.7086.neo_f3kdb                       |  Neo F3KDB Deband Filter r9
neo_fft3d         |  in.7086.neo_fft3d                       |  Neo FFT3D Filter r11
nlm_cuda          |  io.github.amusementclub.nlm_cuda        |  Non-local means denoise filter implemented in CUDA
nnedi3            |  com.deinterlace.nnedi3                  |  Neural network edge directed interpolation (3rd gen.), v12
nnedi3cl          |  com.holywu.nnedi3cl                     |  An intra-field only deinterlacer
noise             |  moe.grass.addnoise                      |  Noise generator
ocr               |  biz.srsfckn.ocr                         |  Tesseract OCR Filter
ort               |  io.github.amusementclub.vs_onnxruntime  |  ONNX Runtime ML Filter Runtime
ov                |  io.github.amusementclub.vs_openvino     |  OpenVINO ML Filter Runtime
placebo           |  com.vs.placebo                          |  libplacebo plugin for VapourSynth
remap             |  blaze.plugin.remap                      |  Remaps frame indices based on a file/string
resize            |  com.vapoursynth.resize                  |  VapourSynth Resize
resize2           |  dev.setsugen.resize2                    |  Built-in VapourSynth resizer based on zimg with some modifications.
retinex           |  com.vapoursynth.retinex                 |  Implementation of Retinex algorithm for VapourSynth.
rgsf              |  com.vapoursynth.removegrainsf           |  RemoveGrain Single Precision
rgvs              |  com.vapoursynth.removegrainvs           |  RemoveGrain VapourSynth Port
sangnom           |  com.mio.sangnom                         |  VapourSynth Single Field Deinterlacer
scxvid            |  com.nodame.scxvid                       |  VapourSynth Scxvid Plugin
std               |  com.vapoursynth.std                     |  VapourSynth Core Functions
tcanny            |  com.holywu.tcanny                       |  Build an edge map using canny edge detection
tdm               |  com.holywu.tdeintmod                    |  A bi-directionally motion adaptive deinterlacer
text              |  com.vapoursynth.text                    |  VapourSynth Text
trt               |  io.github.amusementclub.vs_tensorrt     |  TensorRT ML Filter Runtime
ttmpsm            |  com.holywu.ttempsmooth                  |  A basic, motion adaptive, temporal smoothing filter
vivtc             |  org.ivtc.v                              |  VFM
w2xnvk            |  net.nlzy.vsw2xnvk                       |  VapourSynth Waifu2x NCNN Vulkan Plugin
warp              |  com.nodame.awarpsharp2                  |  Sharpen images by warping
wnnm              |  com.wolframrhodium.wnnm                 |  Weighted Nuclear Norm Minimization Denoiser
wwxd              |  com.nodame.wwxd                         |  Scene change detection approximately like Xvid's
znedi3            |  xxx.abc.znedi3                          |  Neural network edge directed interpolation (3rd gen.)

[Ichunjo]

Or maybe you mean vspreview plugins? If yes, I have dft-view, native-res and the stock plugins. I tried to remove dft and native res but memory still increases after each reload.