Public bug reported:
I've been reporting this since Lucid. In 4 releases now, I have NEVER
been able to reliably use Ubuntu One, despite numerous attempts at
giving it a shot. In Natty, I was at the point where I was ready to
purge Ubuntu One completely from my systems because ubuntuone-syncdaemon
consistently makes my machines unusable. Instead of just purging it, I
thought I'd give it another shot with Oneiric.
Since upgradeing my systems to Oneiric, the problem is still present.
Unfortunately, this impacts my ability to work, as the syncdaemon
consistently eats up at least 50% of available ram and up to 100% of CPU
resources, effectively DoSing my machines. :(
I have three systems that are currently running Oneiric.
1: Netbook w/ an older Atom and 1.5GB RAM
2: Lenovo x201 w/ core i5 and 4GB RAM
3: Alienware M15x w/ core i7 and 4GB RAM.
On all three, allowing syncdaemon to run causes the machines to become
unusable as the syncdaemon thrashes my hard disks, consumes pretty much
all CPU (or on my multi-core systems, it pegs at least one core at 100%)
and consumes 50 - 90% system RAM.
On my Alienware, I've already deleted all ubuntu-one startup files to prevent
Ubuntu One from running.
Same on my netbook.
The only system I have left now, after 4 attempts at using U1 is the
x201, and I fear I now need to purge U1 from it as well, as I need this
machine to work when I'm travelling, and I can't work while U1 is
thrashing the system.
Here's a snip from top that I managed to get:
top - 10:55:25 up 1:18, 0 users, load average: 1.76, 3.18, 3.47
Tasks: 218 total, 3 running, 210 sleeping, 0 stopped, 5 zombie
Cpu(s): 28.0%us, 2.1%sy, 0.2%ni, 56.2%id, 13.4%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 3719004k total, 3603696k used, 115308k free, 7532k buffers
Swap: 1998844k total, 683212k used, 1315632k free, 334028k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1892 bladernr 20 0 2440m 1.9g 6584 R 97 53.2 69:25.06 ubuntuone-syncd
31 root 20 0 0 0 0 D 2 0.0 0:13.20 kswapd0
1945 bladernr 20 0 1320m 63m 10m S 2 1.8 2:38.47 chrome
5208 bladernr 20 0 927m 45m 8088 S 2 1.3 0:21.01 chrome
notice that syncdaemon is consuming 97% CPU time (on one core,
thankfully, not across all cores) and 1.9GB of RAM out of 4 in the
system. It's in a "Local Scan" so in addition to consuming a
significant portion of RAM and CPU, it's also doing a LOT of disk I/O
which further slows the system down. I could let this sit for HOURS and
the result would be the same.
Here's the current status:
bladernr@GarbageScow:~$ u1sdtool -sCreated new window in existing browser
session.
State: LOCAL_RESCAN
connection: Not User With Network
description: doing local rescan
is_connected: False
is_error: False
is_online: False
queues: WORKING
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubuntuone-client 2.0.0-0ubuntu2.2
ProcVersionSignature: Ubuntu 3.0.0-13.22-generic 3.0.6
Uname: Linux 3.0.0-13-generic x86_64
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Wed Dec 14 11:00:32 2011
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
PackageArchitecture: all
SourcePackage: ubuntuone-client
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: ubuntuone-client (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oneiric running-unity
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https://bugs.launchpad.net/bugs/904071
Title:
ubuntuone-syncdaemon STILL consumes ridiculous amounts of ram and
grinds my machines to a halt
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