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Re: Hibernation takes too long



And here’s an example where the output media is an SD card:

rbthomas@nuc8:/media/rbthomas/99602c92-f887-4578-b6bc-39c91d49c43c/rbthomas$ dd if=/dev/zero of=tempfile bs=1M count=1024
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 0.48058 s, 2.2 GB/s

rbthomas@nuc8:/media/rbthomas/99602c92-f887-4578-b6bc-39c91d49c43c/rbthomas$ dd if=/dev/zero of=tempfile bs=1M count=1024 oflag=sync
1024+0 records in
1024+0 records out
1073741824 bytes (1.1 GB, 1.0 GiB) copied, 34.044 s, 31.5 MB/s



> On Jul 23, 2019, at 1:19 AM, Rick Thomas <rbthomas@pobox.com> wrote:
> 
> Here’s an example from one of my machines with a SATA-III SSD and lots of RAM:
> 
> rbthomas@nuc8:~$ dd if=/dev/zero of=tempfile bs=1M count=1024
> 1024+0 records in
> 1024+0 records out
> 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 1.77789 s, 604 MB/s
> 
> rbthomas@nuc8:~$ dd if=/dev/zero of=tempfile bs=1M count=1024 oflag=sync
> 1024+0 records in
> 1024+0 records out
> 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 4.88158 s, 220 MB/s


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