I did the latter, across usually about 4000+ CPUs. That got me a peak of 15 or so GB/sec read from one GCS bucket, writing to another. But yeah if it's not som

I did the latter, across usually about 4000+ CPUs. That got me a peak of 15 or so GB/sec read from one GCS bucket, writing to another. But yeah if it's not something that can be paralleled then it sucks.