PUT of large files via oc-client inefficient with standard chunksize in fast networks

[kiu-ball]

Steps to reproduce

1. Take a large File (>1GB) in a fast network environment (>1GBit)
2. Upload it to your oC with oc-client using standard chunksize
3. Watch transferrate and server load
4. Set the chunksize to a higher value (export OWNCLOUD_CHUNK_SIZE=51248800 for example) and repeat step 2 and 3

Expected behaviour

ownCloud desktop client performs well while uploading large files in a fast network. (~100MB/s)

Actual behaviour

ownCloud desktop client performs bad while producing a high server load with standard parameters. (~10-20MB/s)
If you set the chunksize to a higher value the transfrerate raises while the server load drops. (~90-100MB/s)

Server configuration

openSUSE 13.1 (Bottle) (x86_64)

Web server:
Apache/2.4.16

Database:
PostgreSQL 9.4.5

PHP version:
5.6.9

ownCloud version: (see ownCloud admin page)
8.2.2

Updated from an older ownCloud or fresh install:
Updated

List of activated apps:
Standard

Are you using external storage, if yes which one: local/smb/sftp/...
NFS

Are you using encryption: yes/no
no

Are you using an external user-backend, if yes which one: LDAP/ActiveDirectory/Webdav/...
LDAP

Client configuration

Operating system:
OS X 10.10.5

Client Version:
2.1.0 (build 2944)

[PVince81]

@dragotin

[MorrisJobke]

This looks clearly like a client enhancement.

I guess this is the stuff that @michaelstingl talked about yesterday. Right?

cc @butonic

[MorrisJobke]

cc @DeepDiver1975

[michaelstingl]

I guess this is the stuff that @michaelstingl talked about yesterday. Right?

==> @felixboehm

[DeepDiver1975]

from my pov the client could learn the chunk size depending on the network quality.

client 'issue' -> closing

[kiu-ball]

Moved > owncloud/client#4354

[lock]

This thread has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.