I did this command in terminal and got this results. Is anything suspicious here that why nsurlsessiond is hugging the bandwidth? (I have turned off iCloud Drive and Stuff)
sudo lsof | grep nsurlsessiond
UserEvent 17 root txt REG 1,2 19152 16564038 /System/Library/UserEventPlugins/com.apple.nsurlsessiond.plugin/Contents/MacOS/com.apple.nsurlsessiond
nsurlsess 166 _nsurlsessiond cwd DIR 1,2 1190 2 /
nsurlsess 166 _nsurlsessiond txt REG 1,2 433584 16602450 /usr/libexec/nsurlsessiond
nsurlsess 166 _nsurlsessiond txt REG 1,2 32768 37043674 /private/var/db/mds/messages/se_SecurityMessages
nsurlsess 166 _nsurlsessiond txt REG 1,2 3334144 36961452 /private/var/folders/zz/zyxvpxvq6csfxvn_n0000000000000/0/com.apple.LaunchServices-1030.csstore
nsurlsess 166 _nsurlsessiond txt REG 1,2 622896 16259470 /usr/lib/dyld
nsurlsess 166 _nsurlsessiond txt REG 1,2 381434142 16648622 /private/var/db/dyld/dyld_shared_cache_x86_64
nsurlsess 166 _nsurlsessiond 0r CHR 3,2 0t0 302 /dev/null
nsurlsess 166 _nsurlsessiond 1u CHR 3,2 0t0 302 /dev/null
nsurlsess 166 _nsurlsessiond 2u CHR 3,2 0t150 302 /dev/null
nsurlsess 166 _nsurlsessiond 3u KQUEUE count=2, state=0x2
nsurlsess 166 _nsurlsessiond 4u unix 0x954683f445eec9d 0t0 ->0x954683f3d417e95
nsurlsess 166 _nsurlsessiond 5u systm 0t0
nsurlsess 166 _nsurlsessiond 7u IPv4 0x954683f4c140735 0t0 TCP 192.168.107.135:57938->defra3-vip-bx-006.aaplimg.com:http (ESTABLISHED)
nsurlsess 166 _nsurlsessiond 8u unix 0x954683f3d417e95 0t0 ->0x954683f445eec9d
nsurlsess 166 _nsurlsessiond 9u IPv4 0x954683f4c140735 0t0 TCP 192.168.107.135:57938->defra3-vip-bx-006.aaplimg.com:http (ESTABLISHED)
nsurlsess 166 _nsurlsessiond 10w REG 1,2 134202708 37151618 /private/var/folders/zz/zyxvpxvq6csfxvn_n00000s0000068/C/com.apple.SoftwareUpdate/CFNetworkDownload_7ergSw.tmp
UserEvent 207 miladghattavi txt REG 1,2 19152 16564038 /System/Library/UserEventPlugins/com.apple.nsurlsessiond.plugin/Contents/MacOS/com.apple.nsurlsessiond
UserEvent 207 miladghattavi 35r DIR 1,2 68 16654163 /Users/miladghattavi/Library/com.apple.nsurlsessiond
nsurlsess 299 miladghattavi txt REG 1,2 433584 16602450 /usr/libexec/nsurlsessiond
I entered the command twice; while nsurlsessiond was downloading stuff and the data didn't seem to have change. So I'm guessing this is not the amount of data downloaded by this process, right? Is there anyway to have the information of what it's downloading/downloaded?
Best Answer
There are a lot of posts about this in regards to Yosemite/El Capitan. I personally have a machine w/ OS 10.11.6 and it constantly dl's at 5-10 Mb/sec. I turned off iCloud, tried every reasonable suggestion. I ended up getting little snitch and just denying the culprit, which is the iCloud drive process of nsurlsessiond "isync-edge.icloud-content.com". Even though I have all processes in the OS disabled, this process is being blocked almost every second (I've had my machine on for an hour with thousands of blocked attempts). Granted, this is my old machine I do not use for my primary workflow, so I can afford to do this. If you can update to Sierra, you may not have theses issues, I don't, and I am using the same apple ID on Sierra as I was on the machine that was eating all my bandwidth until manually blocking.