On 8 Sep 2018 at 10:01, Alexander Dalloz wrote: Subject: Re: OT: fastest way to copy one drive to another To: users@xxxxxxxxxxxxxxxxxxxxxxx From: Alexander Dalloz <ad+lists@xxxxxxxxx> Date sent: Sat, 8 Sep 2018 10:01:11 +0200 Send reply to: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx> > Am 08.09.2018 um 00:38 schrieb Michael D. Setzer II: > > The jetcat-mod is a filter that monitors the process of the copy, and outputs > > the info every 5 seconds with this option. The dialog then displays a running > > graph of the progress along with estimated speed. In the clone case there is > > no compression, so the rate is generally the physical speed of disk. With > > image files that are compressed, the effective speed can vary greatly > > depending on how much the data was compressed. Mostly just gives > > progress versus just waiting for the dd command to finish. > > Why no just dd parameter "status=progress"? > Back in 2004, don't think status had progress as an option at all? Second the format of the status is different, and reports on bytes and the output to screen comes at different rates, and is on the same line over and over. Third, it doesn't have any relationship to the size of what is being copied in the data or time. Did a test with an approximat 8G file time dd bs=1M if=e-2009-02-22.lzo 2>/dev/null | /jetcat-mod -f 5000 -p 8780465 | dd bs=1M of=testx.x 2>/dev/null 1.63% 140.00MB of 8574.67MB time: 0:00:03 46.67MB/sec 7.00% 600.00MB of 8574.67MB time: 0:00:08 75.00MB/sec 11.66% 1000.00MB of 8574.67MB time: 0:00:13 76.92MB/sec 16.93% 1452.00MB of 8574.67MB time: 0:00:18 80.67MB/sec 20.34% 1744.00MB of 8574.67MB time: 0:00:23 75.83MB/sec 23.65% 2028.00MB of 8574.67MB time: 0:00:28 72.43MB/sec 25.98% 2228.00MB of 8574.67MB time: 0:00:33 67.52MB/sec 29.16% 2500.00MB of 8574.67MB time: 0:00:38 65.79MB/sec 31.39% 2692.00MB of 8574.67MB time: 0:00:43 62.60MB/sec 33.96% 2912.00MB of 8574.67MB time: 0:00:48 60.67MB/sec 36.25% 3108.00MB of 8574.67MB time: 0:00:53 58.64MB/sec 39.51% 3388.00MB of 8574.67MB time: 0:00:58 58.41MB/sec 41.66% 3572.00MB of 8574.67MB time: 0:01:03 56.70MB/sec 45.02% 3860.00MB of 8574.67MB time: 0:01:08 56.76MB/sec 47.16% 4044.00MB of 8574.67MB time: 0:01:13 55.40MB/sec 49.96% 4284.00MB of 8574.67MB time: 0:01:18 54.92MB/sec 52.57% 4508.00MB of 8574.67MB time: 0:01:23 54.31MB/sec 55.23% 4736.00MB of 8574.67MB time: 0:01:28 53.82MB/sec 57.24% 4908.00MB of 8574.67MB time: 0:01:33 52.77MB/sec 59.62% 5112.00MB of 8574.67MB time: 0:01:38 52.16MB/sec 62.23% 5336.00MB of 8574.67MB time: 0:01:43 51.81MB/sec 64.94% 5568.00MB of 8574.67MB time: 0:01:48 51.56MB/sec 67.64% 5800.00MB of 8574.67MB time: 0:01:53 51.33MB/sec 70.72% 6064.00MB of 8574.67MB time: 0:01:58 51.39MB/sec 73.38% 6292.00MB of 8574.67MB time: 0:02:03 51.15MB/sec 76.18% 6532.00MB of 8574.67MB time: 0:02:08 51.03MB/sec 78.93% 6768.00MB of 8574.67MB time: 0:02:13 50.89MB/sec 81.26% 6968.00MB of 8574.67MB time: 0:02:18 50.49MB/sec 84.06% 7208.00MB of 8574.67MB time: 0:02:23 50.41MB/sec 86.81% 7444.00MB of 8574.67MB time: 0:02:28 50.30MB/sec 87.93% 7540.00MB of 8574.67MB time: 0:02:33 49.28MB/sec 90.31% 7744.00MB of 8574.67MB time: 0:02:38 49.01MB/sec 93.44% 8012.00MB of 8574.67MB time: 0:02:43 49.15MB/sec 95.16% 8160.00MB of 8574.67MB time: 0:02:48 48.57MB/sec 100.00% 8373.71MB of 8574.67MB time: 0:02:52 48.68MB/sec 100 real 2m51.646s user 0m0.817s sys 1m18.394s time dd bs=1M if=e-2009-02-22.lzo of=testx.x status=progress 8767143936 bytes (8.8 GB, 8.2 GiB) copied, 158 s, 55.5 MB/s 8373+1 records in 8373+1 records out 8780465661 bytes (8.8 GB, 8.2 GiB) copied, 158.455 s, 55.4 MB/s real 2m38.507s user 0m0.110s sys 0m47.135s The dd with progress was about 13 seconds faster, but doesn't show percentages or time info. The dialog progress bar uses the lines created every 5 seconds to show info and bar. Note: I just put the file size in the line, which wasn't in the correct format, size I just dropped the last 3 digits of byte instead of converting it to K value. Tried to post a message with an example of bar, but it is currently on hold since the 28K image file result in message being larger than 60K, which is the list limit. The info doesn't make a difference in the image, and is only to give progress info. > Alexander > _______________________________________________ > users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx > To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx > Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html > List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines > List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx +------------------------------------------------------------+ Michael D. Setzer II - Computer Science Instructor (Retired) mailto:mikes@xxxxxxxx mailto:msetzerii@xxxxxxxxx Guam - Where America's Day Begins G4L Disk Imaging Project maintainer http://sourceforge.net/projects/g4l/ +------------------------------------------------------------+ http://setiathome.berkeley.edu (Original) Number of Seti Units Returned: 19,471 Processing time: 32 years, 290 days, 12 hours, 58 minutes (Total Hours: 287,489) BOINC@HOME CREDITS ROSETTA 65778205.643098 | ABC 16613838.513356 SETI 109514958.178814 | EINSTEIN 141374481.499240 _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/users@xxxxxxxxxxxxxxxxxxxxxxx
