casperdcl: @efiop @xliiv this is the sort of thing I intended. The only reason I haven't implement it before is I don't know how to test it (https://github.com/iterative/dvc/issues/1566#issuecomment-554794000)
diff --git a/dvc/remote/gs.py b/dvc/remote/gs.py
index c2fb4efc1..0ba106dbd 100644
--- a/dvc/remote/gs.py
+++ b/dvc/remote/gs.py
@@ -1,14 +1,17 @@
-from __future__ import unicode_literals
+from __future__ import unicode_literals, division
 
 import logging
 from datetime import timedelta
 from functools import wraps
+import io
+import os.path
 
 from funcy import cached_property
 
 from dvc.config import Config
 from dvc.exceptions import DvcException
 from dvc.path_info import CloudURLInfo
+from dvc.progress import Tqdm
 from dvc.remote.base import RemoteBASE
 from dvc.scheme import Schemes
 from dvc.utils.compat import FileNotFoundError  # skipcq: PYL-W0622
@@ -20,25 +23,24 @@ def dynamic_chunk_size(func):
     @wraps(func)
     def wrapper(*args, **kwargs):
         import requests
-        from google.cloud.storage.blob import Blob, _DEFAULT_CHUNKSIZE
+        from google.cloud.storage.blob import Blob
 
-        # Default chunk size for gs is 100M, which might be too much for
-        # particular network (see [1]). So if we are getting ConnectionError,
-        # we should try lowering the chunk size until we reach the minimum
-        # allowed chunk size of 256K. Also note that `chunk_size` must be a
-        # multiple of 256K per the API specification.
+        # `ConnectionError` may be due to too large `chunk_size`
+        # (see [#2572]) so try halving on error.
+        # Note: start with 40 * [default: 256K] = 10M.
+        # Note: must be multiple of 256K.
         #
-        # [1] https://github.com/iterative/dvc/issues/2572
+        # [#2572]: https://github.com/iterative/dvc/issues/2572
 
         # skipcq: PYL-W0212
-        multiplier = int(_DEFAULT_CHUNKSIZE / Blob._CHUNK_SIZE_MULTIPLE)
+        multiplier = 40
         while True:
             try:
                 # skipcq: PYL-W0212
                 chunk_size = Blob._CHUNK_SIZE_MULTIPLE * multiplier
                 return func(*args, chunk_size=chunk_size, **kwargs)
             except requests.exceptions.ConnectionError:
-                multiplier = int(multiplier / 2)
+                multiplier //= 2
                 if not multiplier:
                     raise
 
@@ -46,9 +48,32 @@ def dynamic_chunk_size(func):
 
 
 @dynamic_chunk_size
-def _upload_to_bucket(bucket, from_file, to_info, **kwargs):
-    blob = bucket.blob(to_info.path, **kwargs)
-    blob.upload_from_filename(from_file)
+def _upload_to_bucket(
+    bucket,
+    from_file,
+    to_info,
+    chunk_size=None,
+    name=None,
+    no_progress_bar=True,
+):
+    blob = bucket.blob(to_info.path, chunk_size=chunk_size)
+    with Tqdm(
+        desc=name or to_info.path,
+        total=os.path.getsize(from_file),
+        bytes=True,
+        disable=no_progress_bar,
+    ) as pbar:
+        with io.open(from_file, mode="rb") as fobj:
+            raw_read = fobj.read
+
+            def read(size=chunk_size):
+                res = raw_read(size)
+                if res:
+                    pbar.update(len(res))
+                return res
+
+            fobj.read = read
+            blob.upload_from_file(fobj)
 
 
 class RemoteGS(RemoteBASE):
@@ -123,14 +148,34 @@ class RemoteGS(RemoteBASE):
         paths = set(self._list_paths(path_info.bucket, path_info.path))
         return any(path_info.path == path for path in paths)
 
-    def _upload(self, from_file, to_info, **_kwargs):
+    def _upload(self, from_file, to_info, name=None, no_progress_bar=True):
         bucket = self.gs.bucket(to_info.bucket)
-        _upload_to_bucket(bucket, from_file, to_info)
+        _upload_to_bucket(
+            bucket,
+            from_file,
+            to_info,
+            name=name,
+            no_progress_bar=no_progress_bar,
+        )
 
-    def _download(self, from_info, to_file, **_kwargs):
+    def _download(self, from_info, to_file, name=None, no_progress_bar=True):
         bucket = self.gs.bucket(from_info.bucket)
         blob = bucket.get_blob(from_info.path)
-        blob.download_to_filename(to_file)
+        with Tqdm(
+            desc=name or from_info.path,
+            total=blob.size,
+            bytes=True,
+            disable=no_progress_bar,
+        ) as pbar:
+            with io.open(to_file, mode="wb") as fobj:
+                raw_write = fobj.write
+
+                def write(byte_string):
+                    raw_write(byte_string)
+                    pbar.update(len(byte_string))
+
+                fobj.write = write
+                blob.download_to_file(fobj)
 
     def _generate_download_url(self, path_info, expires=3600):
         expiration = timedelta(seconds=int(expires))

gs: support progress callback
I may have missed an issue concerning this, but when I am `dvc push`ing to a google cloud remote, the progress bars that are currently displayed don't get updated progressively (They go from 0 when starting to 100 when finished).

It would be nice to have a dynamic progressbar with upload speed and remaining time estimation, especially when push huge sets of data.
diff --git a/tests/unit/remote/test_gs.py b/tests/unit/remote/test_gs.py
index 817b64c59..62923e41e 100644
--- a/tests/unit/remote/test_gs.py
+++ b/tests/unit/remote/test_gs.py
@@ -53,14 +53,4 @@ def test_dynamic_chunk_size():
     with pytest.raises(requests.exceptions.ConnectionError):
         upload()
 
-    assert chunk_sizes == [
-        104857600,
-        52428800,
-        26214400,
-        13107200,
-        6553600,
-        3145728,
-        1572864,
-        786432,
-        262144,
-    ]
+    assert chunk_sizes == [10485760, 5242880, 2621440, 1310720, 524288, 262144]

pip install -e .[all]
parse_log_pytest
pytest
pytest pytest-timeout pytest-cov pytest-xdist pytest-mock flaky mock xmltodict awscli google-compute-engine Pygments collective.checkdocs flake8 psutil flake8-docstrings pydocstyle jaraco.windows mock-ssh-server moto rangehttpserver
apt-get update apt-get install -y gcc
3.7
pytest --no-header -rA --tb=line --color=no -p no:cacheprovider -W ignore::DeprecationWarning
aliyun-python-sdk-core==2.16.0
aliyun-python-sdk-core-v3==2.13.33
aliyun-python-sdk-kms==2.16.5
appdirs==1.4.4
asciimatics==1.14.0
atpublic==3.1.2
attrs @ file:///croot/attrs_1668696182826/work
autocommand==2.2.2
awscli==1.31.13
azure-common==1.1.28
azure-storage-blob==2.1.0
azure-storage-common==2.1.0
bcrypt==4.2.1
boto==2.49.0
boto3==1.9.115
botocore==1.12.253
cachetools==4.2.4
certifi @ file:///croot/certifi_1671487769961/work/certifi
cffi==1.15.1
charset-normalizer==3.4.1
collective.checkdocs==0.2
colorama==0.4.4
configobj==5.0.9
configparser==5.3.0
coverage==7.2.7
crcmod==1.7
cryptography==44.0.2
decorator==5.1.1
distro==1.9.0
docutils==0.15.2
-e git+https://github.com/iterative/dvc.git@38c210068ba5aeb70ad92a8c22e85832640d8ebd#egg=dvc
execnet==2.0.2
flake8==5.0.4
flake8-docstrings==1.7.0
flaky==3.8.1
flit_core @ file:///opt/conda/conda-bld/flit-core_1644941570762/work/source/flit_core
flufl.lock==7.1.1
funcy==2.0
future==1.0.0
gitdb==4.0.12
gitdb2==4.0.2
GitPython==3.1.44
google-api-core==2.10.2
google-auth==1.35.0
google-cloud-core==1.7.3
google-cloud-storage==1.19.0
google-compute-engine==2.8.13
google-crc32c==1.5.0
google-resumable-media==2.7.2
googleapis-common-protos==1.69.2
grandalf==0.6
humanize==4.6.0
idna==3.10
importlib-metadata==4.2.0
importlib-resources==5.12.0
inflect==6.0.5
iniconfig @ file:///home/linux1/recipes/ci/iniconfig_1610983019677/work
jaraco.classes==3.2.3
jaraco.collections==4.2.0
jaraco.context==4.3.0
jaraco.functools==3.7.0
jaraco.structures==2.1.0
jaraco.text==3.11.1
jaraco.ui==2.3.0
jaraco.windows==5.7.0
Jinja2==3.1.6
jmespath==0.10.0
jsonpath-ng==1.7.0
MarkupSafe==2.1.5
mccabe==0.7.0
mock==5.2.0
mock-ssh-server==0.9.1
more-itertools==9.1.0
moto==4.2.14
nanotime==0.5.2
networkx==2.3
numpy==1.21.6
oss2==2.6.1
packaging @ file:///croot/packaging_1671697413597/work
paramiko==3.5.1
path==16.6.0
pathspec==0.11.2
Pillow==9.5.0
pluggy @ file:///tmp/build/80754af9/pluggy_1648042572264/work
ply==3.11
protobuf==4.24.4
psutil==7.0.0
py @ file:///opt/conda/conda-bld/py_1644396412707/work
pyarrow==0.14.0
pyasn1==0.5.1
pyasn1-modules==0.3.0
pycodestyle==2.9.1
pycparser==2.21
pycryptodome==3.22.0
pydantic==1.10.21
pydocstyle==6.3.0
pyfiglet==0.8.post1
pyflakes==2.5.0
Pygments==2.17.2
PyNaCl==1.5.0
pyparsing==3.1.4
pytest==7.1.2
pytest-cov==4.1.0
pytest-mock==3.11.1
pytest-timeout==2.3.1
pytest-xdist==3.5.0
python-dateutil==2.9.0.post0
PyYAML==6.0.1
rangehttpserver==1.4.0
requests==2.31.0
responses==0.23.3
rsa==4.7.2
ruamel.yaml==0.18.10
ruamel.yaml.clib==0.2.8
s3transfer==0.2.1
schema==0.7.7
shortuuid==1.0.13
six==1.17.0
smmap==5.0.2
snowballstemmer==2.2.0
tomli @ file:///opt/conda/conda-bld/tomli_1657175507142/work
tqdm==4.67.1
treelib==1.7.1
types-PyYAML==6.0.12.12
typing_extensions @ file:///croot/typing_extensions_1669924550328/work
urllib3==1.25.11
wcwidth==0.2.13
Werkzeug==2.2.3
xmltodict==0.14.2
zipp @ file:///croot/zipp_1672387121353/work

name: dvc
channels:
  - defaults
  - https://repo.anaconda.com/pkgs/main
  - https://repo.anaconda.com/pkgs/r
  - conda-forge
dependencies:
  - _libgcc_mutex=0.1=main
  - _openmp_mutex=5.1=1_gnu
  - attrs=22.1.0=py37h06a4308_0
  - ca-certificates=2025.2.25=h06a4308_0
  - certifi=2022.12.7=py37h06a4308_0
  - flit-core=3.6.0=pyhd3eb1b0_0
  - importlib_metadata=4.11.3=hd3eb1b0_0
  - iniconfig=1.1.1=pyhd3eb1b0_0
  - ld_impl_linux-64=2.40=h12ee557_0
  - libffi=3.4.4=h6a678d5_1
  - libgcc-ng=11.2.0=h1234567_1
  - libgomp=11.2.0=h1234567_1
  - libstdcxx-ng=11.2.0=h1234567_1
  - ncurses=6.4=h6a678d5_0
  - openssl=1.1.1w=h7f8727e_0
  - packaging=22.0=py37h06a4308_0
  - pip=22.3.1=py37h06a4308_0
  - pluggy=1.0.0=py37h06a4308_1
  - py=1.11.0=pyhd3eb1b0_0
  - pytest=7.1.2=py37h06a4308_0
  - python=3.7.16=h7a1cb2a_0
  - readline=8.2=h5eee18b_0
  - setuptools=65.6.3=py37h06a4308_0
  - sqlite=3.45.3=h5eee18b_0
  - tk=8.6.14=h39e8969_0
  - tomli=2.0.1=py37h06a4308_0
  - typing_extensions=4.4.0=py37h06a4308_0
  - wheel=0.38.4=py37h06a4308_0
  - xz=5.6.4=h5eee18b_1
  - zipp=3.11.0=py37h06a4308_0
  - zlib=1.2.13=h5eee18b_1
  - pip:
      - aliyun-python-sdk-core==2.16.0
      - aliyun-python-sdk-core-v3==2.13.33
      - aliyun-python-sdk-kms==2.16.5
      - appdirs==1.4.4
      - asciimatics==1.14.0
      - atpublic==3.1.2
      - autocommand==2.2.2
      - awscli==1.31.13
      - azure-common==1.1.28
      - azure-storage-blob==2.1.0
      - azure-storage-common==2.1.0
      - bcrypt==4.2.1
      - boto==2.49.0
      - boto3==1.9.115
      - botocore==1.12.253
      - cachetools==4.2.4
      - cffi==1.15.1
      - charset-normalizer==3.4.1
      - collective-checkdocs==0.2
      - colorama==0.4.4
      - configobj==5.0.9
      - configparser==5.3.0
      - coverage==7.2.7
      - crcmod==1.7
      - cryptography==44.0.2
      - decorator==5.1.1
      - distro==1.9.0
      - docutils==0.15.2
      - dvc==0.68.1+38c210
      - execnet==2.0.2
      - flake8==5.0.4
      - flake8-docstrings==1.7.0
      - flaky==3.8.1
      - flufl-lock==7.1.1
      - funcy==2.0
      - future==1.0.0
      - gitdb==4.0.12
      - gitdb2==4.0.2
      - gitpython==3.1.44
      - google-api-core==2.10.2
      - google-auth==1.35.0
      - google-cloud-core==1.7.3
      - google-cloud-storage==1.19.0
      - google-compute-engine==2.8.13
      - google-crc32c==1.5.0
      - google-resumable-media==2.7.2
      - googleapis-common-protos==1.69.2
      - grandalf==0.6
      - humanize==4.6.0
      - idna==3.10
      - importlib-metadata==4.2.0
      - importlib-resources==5.12.0
      - inflect==6.0.5
      - jaraco-classes==3.2.3
      - jaraco-collections==4.2.0
      - jaraco-context==4.3.0
      - jaraco-functools==3.7.0
      - jaraco-structures==2.1.0
      - jaraco-text==3.11.1
      - jaraco-ui==2.3.0
      - jaraco-windows==5.7.0
      - jinja2==3.1.6
      - jmespath==0.10.0
      - jsonpath-ng==1.7.0
      - markupsafe==2.1.5
      - mccabe==0.7.0
      - mock==5.2.0
      - mock-ssh-server==0.9.1
      - more-itertools==9.1.0
      - moto==4.2.14
      - nanotime==0.5.2
      - networkx==2.3
      - numpy==1.21.6
      - oss2==2.6.1
      - paramiko==3.5.1
      - path==16.6.0
      - pathspec==0.11.2
      - pillow==9.5.0
      - ply==3.11
      - protobuf==4.24.4
      - psutil==7.0.0
      - pyarrow==0.14.0
      - pyasn1==0.5.1
      - pyasn1-modules==0.3.0
      - pycodestyle==2.9.1
      - pycparser==2.21
      - pycryptodome==3.22.0
      - pydantic==1.10.21
      - pydocstyle==6.3.0
      - pyfiglet==0.8.post1
      - pyflakes==2.5.0
      - pygments==2.17.2
      - pynacl==1.5.0
      - pyparsing==3.1.4
      - pytest-cov==4.1.0
      - pytest-mock==3.11.1
      - pytest-timeout==2.3.1
      - pytest-xdist==3.5.0
      - python-dateutil==2.9.0.post0
      - pyyaml==6.0.1
      - rangehttpserver==1.4.0
      - requests==2.31.0
      - responses==0.23.3
      - rsa==4.7.2
      - ruamel-yaml==0.18.10
      - ruamel-yaml-clib==0.2.8
      - s3transfer==0.2.1
      - schema==0.7.7
      - shortuuid==1.0.13
      - six==1.17.0
      - smmap==5.0.2
      - snowballstemmer==2.2.0
      - tqdm==4.67.1
      - treelib==1.7.1
      - types-pyyaml==6.0.12.12
      - urllib3==1.25.11
      - wcwidth==0.2.13
      - werkzeug==2.2.3
      - xmltodict==0.14.2
prefix: /opt/conda/envs/dvc

tests/unit/remote/test_gs.py::test_dynamic_chunk_size
tests/unit/remote/test_gs.py::TestRemoteGS::test_gs tests/unit/remote/test_gs.py::TestRemoteGS::test_gs_no_credspath tests/unit/remote/test_gs.py::TestRemoteGS::test_init
dvc/remote/gs.py
dvc/remote/gs.py