Ubuntu
linux package

  1. Xenial (16.04)
  2. Bug #1636847
  3. Comment #11

Comment 11 for bug 1636847

Revision history for this message
Seth Forshee (sforshee) wrote :

Observations from some very unscientific testing. Testing was done with fio using 8 parallel jobs doing random reads in an amd64 VM with 8 cores.

* The kernel in comment #10 and 4.4.0-45 (with SQUASHFS_DECOMP_MULTI_PERCPU) performed comparably for the most part. 4.4.0-47 (with CONFIG_SQUASHFS_DECOMP_SINGLE) was somewhat slower.

* With 4K and 128K block sizes, I did not see the kernel from comment #10 falling back to using the data block cache at all during my tests. With a 1M block size it was falling back to the data block cache sometimes.