Multichase - a pointer chaser benchmark
1/ BUILD
- just type:
$ make
2/ INSTALL
- just run from current directory or copy multichase wherever you need to
3/ RUN
- By default, multichase will perform a pointer chase through an array
size of 256MB and a stride size of 256 bytes for 2.5 seconds on a single
thread:
$ multichase
- Pointer chase through an array of 4MB with a stride size of 64 bytes:
$ multichase -m 4m -s 64
- Pointer chase through an array of 1GB for 10 seconds (-n is the number of 0.5 second samples):
$ multichase -m 1g -n 20
- Pointer chase through an array of 256KB with a stride size of 128 bytes on 2 threads.
Thread 0 accesses every 128th byte, thread 1 accesses every 128th byte offset by sizeof(void*)=8
on 64bit architectures:
$ multichase -m 256k -s 128 -t 2
- Pingpong: measure latency of exchanging a line between cores.
To run, simply do:
$ pingpong -u
- Fairness: measure fairness with N threads competing to increment an atomic variable.
To run, simply do:
$ fairness