mattheworirodan

Cpu Utilisation Is Too High

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I'm running Bittorrent Sync Version 1.2.82 on Mac OS X 10.9.1 on 3 machines, and I find the CPU utilisation is just too high, and my battery life on my laptops has degraded significantly.  

 

CPU usage will range from 100% quite frequently down to around 10-15% but even when nothing happens.  I find it's often reindexing my files (339,000, I realise I have a few), and changing a few files can get it off on a tangent.

 

I migrated across from Dropbox to Bittorrent Sync because I love the idea of not storing my data in the cloud, however I am finding the loss in battery life, the constant  spinning of my fans, and the degraded performance is getting me to the point where I may unfortunately move back.

 

Does anyone know what could be causing this, or how this could be fixed?

Thanks,

Matt

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Does anyone know what could be causing this, or how this could be fixed?

It's likely due to the fact that Sync is currently in "Beta" - therefore, some beta builds have a higher CPU utilization than others. I'd expect this to be addressed in a later, stable, build.

 

However, in the meantime, the amount of CPU usage that Sync is related to the number of files being indexed/monitored/synced. Short of reducing the number of files you're syncing (not particularly practical), there are some advanced settings you could "tweak" that may lead to a reduction in your CPU levels. These include:

  • Increase the value of "folder_rescan_interval"
  • Set "lan_encrypt_data" to false
  • Disable "Search LAN"

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In addition to the "BitTorrent Sync"-process having a high CPU, its rotating icon in the status bar will probably also cause the WindowServer-process to have a high CPU. It seems like this is a bug on the Mac (Google for: WindowServer High CPU Mac). I don't know if it's on all Macs, but it's on my MacBook Pro with Yosemite. If I pause the syncing, the WindowServer-process gets a low CPU.

 

Suggestion to the developers:

Please test if the CPU of the WindowServer-process drops by either removing the animating icon from the status bar OR (probably better?) by lowering the update frequency of the icon.

 

Thank you in advance!

Edited by jola16

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@jola16

We are aware of the issue. It reproduces only for some setups, not all MacOS devices are affected. We plan to optimize the way icon animated in future.

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