Public bug reported:
This is more of an enhancement request. Sorry I don't have detailed
information other than below, but the main symptom is that:
The battery lasts almost about 20% less with the btrfs option on Ubuntu
17.10.
Below are some details of my experience (it is not very detailed or
descriptive, but I am hoping other Ubuntu users might add their
experiences, or more details)
I compared fresh installations of the following 3 setups. After fresh
installs, all on Gnome, without any extensions or modifications (on a
standard thinkpad kaby lake laptop with SSD).
1- Ubuntu 17.10 with ext4
2- Opensuse Leap 42.3 (Btrfs default)
3- Ubuntu 17.10 on Btrfs (btrfs snapshots enabled, and a few snapshots are
taken)
Both 1 and 2 long term idle power usage is consistently at 3.5
watts/sec. However in 3 option it is 4.3 watts/sec. In my daily usage
(3) is about 6.5hr (vs 8hr or even more. )
I really wanted to use new Ubuntu with Gnome so I did various tests on
battery usage. The only difference seems to be that [btrfs-
transactions] process writes more data and with a higher frequency
(compared to Leap).
I couldn't see any other difference. For example, total CPU usage of all
3 are very similar almost identical per process. Additional watt/sec
contribution of devices (such as blueetooth) are also identical.
** Affects: ubuntu
Importance: Undecided
Status: New
** Tags: enhancement request
** Description changed:
This is more of an enhancement request. Sorry I don't have detailed
information other than below, but the main symptom is that:
The battery lasts almost about 20% less with the btrfs option on Ubuntu
17.10.
- Below are some details of my experience (sorry, it is not very detailed
- or descriptive. Hoping other Ubuntu users might add their experience, or
- more details)
+ Below are some details of my experience (it is not very detailed or
+ descriptive, but I am hoping other Ubuntu users might add their
+ experiences, or more details)
I compared fresh installations of the following 3 setups. After fresh
installs, all on Gnome, without any extensions or modifications (on a
thinkpad kaby lake laptop with SSD).
1- Ubuntu 17.10 with ext4
2- Opensuse Leap 42.3 (Btrfs default)
3- Ubuntu 17.10 on Btrfs (btrfs snapshots enabled, and a few snapshots are
taken)
Both 1 and 2 long term idle power usage is consistently at 3.5
watts/sec. However in 3 option it is 4.3 watts/sec. In my daily usage
(3) is about 2-hours shorter than (2).
I really wanted to use new Ubuntu with Gnome so I did various tests on
battery usage. The only difference seems to be that [btrfs-
transactions] process writes more data and with a higher frequency
(compared to Leap).
I couldn't see any other difference. For example, total CPU usage of all
3 are very similar almost identical per process. Additional contribution
of devices (such as blueetooth) are also identical.
** Description changed:
This is more of an enhancement request. Sorry I don't have detailed
information other than below, but the main symptom is that:
The battery lasts almost about 20% less with the btrfs option on Ubuntu
17.10.
Below are some details of my experience (it is not very detailed or
descriptive, but I am hoping other Ubuntu users might add their
experiences, or more details)
I compared fresh installations of the following 3 setups. After fresh
installs, all on Gnome, without any extensions or modifications (on a
- thinkpad kaby lake laptop with SSD).
+ standard thinkpad kaby lake laptop with SSD).
1- Ubuntu 17.10 with ext4
2- Opensuse Leap 42.3 (Btrfs default)
3- Ubuntu 17.10 on Btrfs (btrfs snapshots enabled, and a few snapshots are
taken)
Both 1 and 2 long term idle power usage is consistently at 3.5
watts/sec. However in 3 option it is 4.3 watts/sec. In my daily usage
(3) is about 2-hours shorter than (2).
I really wanted to use new Ubuntu with Gnome so I did various tests on
battery usage. The only difference seems to be that [btrfs-
transactions] process writes more data and with a higher frequency
(compared to Leap).
I couldn't see any other difference. For example, total CPU usage of all
3 are very similar almost identical per process. Additional contribution
of devices (such as blueetooth) are also identical.
** Description changed:
This is more of an enhancement request. Sorry I don't have detailed
information other than below, but the main symptom is that:
The battery lasts almost about 20% less with the btrfs option on Ubuntu
17.10.
Below are some details of my experience (it is not very detailed or
descriptive, but I am hoping other Ubuntu users might add their
experiences, or more details)
I compared fresh installations of the following 3 setups. After fresh
installs, all on Gnome, without any extensions or modifications (on a
standard thinkpad kaby lake laptop with SSD).
1- Ubuntu 17.10 with ext4
2- Opensuse Leap 42.3 (Btrfs default)
3- Ubuntu 17.10 on Btrfs (btrfs snapshots enabled, and a few snapshots are
taken)
Both 1 and 2 long term idle power usage is consistently at 3.5
watts/sec. However in 3 option it is 4.3 watts/sec. In my daily usage
(3) is about 2-hours shorter than (2).
I really wanted to use new Ubuntu with Gnome so I did various tests on
battery usage. The only difference seems to be that [btrfs-
transactions] process writes more data and with a higher frequency
(compared to Leap).
I couldn't see any other difference. For example, total CPU usage of all
- 3 are very similar almost identical per process. Additional contribution
- of devices (such as blueetooth) are also identical.
+ 3 are very similar almost identical per process. Additional watt/sec
+ contribution of devices (such as blueetooth) are also identical.
** Description changed:
This is more of an enhancement request. Sorry I don't have detailed
information other than below, but the main symptom is that:
The battery lasts almost about 20% less with the btrfs option on Ubuntu
17.10.
Below are some details of my experience (it is not very detailed or
descriptive, but I am hoping other Ubuntu users might add their
experiences, or more details)
I compared fresh installations of the following 3 setups. After fresh
installs, all on Gnome, without any extensions or modifications (on a
standard thinkpad kaby lake laptop with SSD).
1- Ubuntu 17.10 with ext4
2- Opensuse Leap 42.3 (Btrfs default)
3- Ubuntu 17.10 on Btrfs (btrfs snapshots enabled, and a few snapshots are
taken)
Both 1 and 2 long term idle power usage is consistently at 3.5
watts/sec. However in 3 option it is 4.3 watts/sec. In my daily usage
- (3) is about 2-hours shorter than (2).
+ (3) is about 6.5hr (vs 8hr or even more. )
I really wanted to use new Ubuntu with Gnome so I did various tests on
battery usage. The only difference seems to be that [btrfs-
transactions] process writes more data and with a higher frequency
(compared to Leap).
I couldn't see any other difference. For example, total CPU usage of all
3 are very similar almost identical per process. Additional watt/sec
contribution of devices (such as blueetooth) are also identical.
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https://bugs.launchpad.net/bugs/1736570
Title:
Btrfs battery usage enhancement request
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