Docker GDAL COG creation issues

create-cog.sh

#!/bin/bash
GDAL_CONTAINER=osgeo/gdal:ubuntu-small-latest
TIF_FOLDER=

docker run -v $PWD:$PWD -it $GDAL_CONTAINER gdalbuildvrt \
  $PWD/$TIF_FOLDER.vrt \
  $PWD/$TIF_FOLDER/*.tif

docker run -v $PWD:$PWD -it $GDAL_CONTAINER gdal_translate \
  -of COG \
  -co COMPRESS=WEBP \
  -co NUM_THREADS=ALL_CPUS \
  -co BIGTIFF=YES \
  --config BIGTIFF_OVERVIEW YES \
  --config GDAL_CACHEMAX 8196 \
  $PWD/$TIF_FOLDER.vrt $PWD/$TIF_FOLDER.webp.cog.tif

osgeo_gdal_alpine-normal-latest

Samples: 26K of event 'cpu-clock', Event count (approx.): 260850000000
  Children      Self  Command         Shared Object        Symbol
+   69.46%    16.13%  gdal_translate  ld-musl-x86_64.so.1  [.] memset
+   56.34%     0.00%  gdal_translate  [kernel.kallsyms]    [k] page_fault
+   56.34%     0.02%  gdal_translate  [kernel.kallsyms]    [k] do_page_fault
+   56.17%    24.83%  gdal_translate  [kernel.kallsyms]    [k] __do_page_fault
+   27.35%     1.38%  gdal_translate  [kernel.kallsyms]    [k] handle_mm_fault
+   25.52%     2.50%  gdal_translate  [kernel.kallsyms]    [k] __handle_mm_fault
+   12.14%     0.30%  gdal_translate  [kernel.kallsyms]    [k] alloc_pages_vma
+   11.50%     0.64%  gdal_translate  [kernel.kallsyms]    [k] __alloc_pages_nodemask
+    7.92%     0.00%  gdal_translate  [kernel.kallsyms]    [k] entry_SYSCALL_64_after_hwframe
+    7.92%     0.04%  gdal_translate  [kernel.kallsyms]    [k] do_syscall_64
+    7.31%     0.02%  gdal_translate  ld-musl-x86_64.so.1  [.] __munmap
+    7.26%     0.00%  gdal_translate  [kernel.kallsyms]    [k] __x64_sys_munmap
+    7.26%     0.00%  gdal_translate  [kernel.kallsyms]    [k] __vm_munmap
+    7.24%     0.01%  gdal_translate  [kernel.kallsyms]    [k] __do_munmap
+    6.98%     0.00%  gdal_translate  [kernel.kallsyms]    [k] unmap_region
+    6.83%     6.78%  gdal_translate  [kernel.kallsyms]    [k] clear_page_erms
+    6.67%     6.67%  gdal_translate  [kernel.kallsyms]    [k] _raw_spin_unlock_irqrestore

osgeo_gdal_ubuntu-small-latest

Samples: 16K of event 'cpu-clock', Event count (approx.): 165400000000
  Children      Self  Command         Shared Object        Symbol
+   56.69%     0.00%  gdal_translate  libc-2.27.so         [.] 0x00007f30814dbf2d
+   55.94%    55.94%  gdal_translate  libc-2.27.so         [.] 0x000000000018ef2d
+    6.58%     0.00%  gdal_translate  [kernel.kallsyms]    [k] page_fault
+    6.58%     0.00%  gdal_translate  [kernel.kallsyms]    [k] do_page_fault
+    6.58%     1.51%  gdal_translate  [kernel.kallsyms]    [k] __do_page_fault
+    4.93%     0.10%  gdal_translate  [kernel.kallsyms]    [k] handle_mm_fault
+    4.77%     0.33%  gdal_translate  [kernel.kallsyms]    [k] __handle_mm_fault
+    3.75%     0.00%  gdal_translate  [unknown]            [.] 0000000000000000
+    3.23%     0.06%  gdal_translate  [kernel.kallsyms]    [k] __alloc_pages_nodemask
+    2.65%     0.00%  gdal_translate  [kernel.kallsyms]    [k] entry_SYSCALL_64_after_hwframe
+    2.64%     0.11%  gdal_translate  [kernel.kallsyms]    [k] do_syscall_64
+    2.13%     0.02%  gdal_translate  [kernel.kallsyms]    [k] __alloc_pages_slowpath
+    2.12%     0.00%  gdal_translate  libgdal.so.3.1.0     [.] 0x00007f308246fb74
+    2.11%     0.00%  gdal_translate  libgdal.so.3.1.0     [.] 0x00007f308246fb63
+    2.06%     0.00%  gdal_translate  libgdal.so.3.1.0     [.] 0x00007f308246fb82
+    1.91%     0.02%  gdal_translate  [kernel.kallsyms]    [k] alloc_pages_vma
+    1.86%     0.01%  gdal_translate  [kernel.kallsyms]    [k] do_try_to_free_pages

perf.sh

perf record -g -a -F 100 -e cpu-clock  -G docker/${CONTAINER_ID} sleep 90
perf report

A large porition of time is being spent inside of memset inside of alpine, changing the image to ubuntu fixes the problem..

This would imply there is some issue with musl and gdal

Interesting...