| # This outputs a graph of time(N), the time it takes to write 1<<N bytes in us. |
| # e.g. 0 1 2 4 8 16 32 |
| # The last value is for 4M, convert that to MiB/s for comparison |
| # |
| # Ideally we want to run this per ring, |
| # gem_exec_nop:rcs, gem_exec_nop:bcs, gem_exec_nop:vcs |
| # though for the time being just one will suffice |
| |
| [ -e $IGT_BENCHMARKS/gem_prw ] || return 1 |
| sudo -n true || return 1 |
| |
| for j in read write; do |
| for i in cpu gtt; do |
| test_name="$test_name gem:p$j:$i" |
| eval "gem:p$j:${i}_run() { sudo $IGT_BENCHMARKS/gem_prw -D $j -d $i -r \$1 ; }" |
| eval "gem:p$j:${i}_process() { bc -l <<< \" 4*1000000 / \${@: -1} \" ; }" |
| done |
| done |
| |
| test_exec_time=1 |