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Question: Does Galaxy designate file sizes by SI or IEC?
1
gravatar for john
4.6 years ago by
john • 20
United States
john • 20 wrote:

I uploaded a 9,057,353,100 byte FASTQ file to Galaxy via ftp. This is about 9.057 GB or 8.436 GiB. Galaxy shows the uploaded file size as 8.4 GB. Is this actually 8.4 GiB?
forum galaxy • 781 views
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modified 4.6 years ago by Istvan Albert ♦ 250 • written 4.6 years ago by john • 20

There might be some compression in place.

ADD REPLY • link written 4.6 years ago by Martin Čech ♦♦ 4.9k
1
gravatar for john
4.6 years ago by
john • 20
United States
john • 20 wrote:

Possibly, it's just that 9.05 Gigabyte (1 GB = 10^9 B = 1,000,000,000 bytes) equals 8.4 Gibibyte (1 GiB = 2^30 B = 1,073,741,824 B). My file is 9.05 GB or 8.4 GiB. Galaxy shows my 9.05 GB or 8.4 GiB file as 8.4 GB. It just seems coincidental that the 8.4 value Galaxy gives in GB is what my file actually is in GiB, which makes me think they may be using the SI unit, where the prefix represents a power of ten (kB, MB, GB), when they actually mean IEC units, where the prefix represents a power of two (KiB, MiB, GiB).
ADD COMMENT • link written 4.6 years ago by john • 20

Galaxy is, in fact, using multiples of 1024 as you point out.

ADD REPLY • link written 4.6 years ago by Daniel Blankenberg ♦♦ 1.7k

So should we file a bug to correct the display units to say GiB (gibibytes using 2^30), or correct the scaling to really be in GB (gigabytes using 10^9)?

ADD REPLY • link written 4.5 years ago by Peter Cock • 1.4k
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