50 Gb Test File -

fsutil file createnew D:\testfile_50GB.bin 53687091200 Note: 50 GB = 50 × 1024 × 1024 × 1024 = 53,687,091,200 bytes.

dd if=50GB_test.file of=/dev/nvme0n1 bs=1M conv=fsync Watch the speed graph. If it collapses after 25GB, your drive needs a heat sink. A 50GB file is unwieldy for email or FAT32 drives (which cap at 4GB). Here is how to split it. Splitting for FAT32 or Cloud Uploads Using 7-Zip or Linux split : 50 gb test file

# Time how long ZSTD takes on 50GB time zstd -19 50GB_random.file -o 50GB_compressed.zst time gzip -9 50GB_random.file fsutil file createnew D:\testfile_50GB