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

Interesting...