Stock 3.2.3-1- no load. 
[root@crappylappy ~]# cyclictest -a -t -n -p99 -i100 -d50 -l1000000 -q
# /dev/cpu_dma_latency set to 0us
T: 0 ( 2007) P:99 I:100 C:1000000 Min:      4 Act:   16 Avg:   16 Max:    3339
T: 1 ( 2008) P:98 I:150 C: 666773 Min:      4 Act:   16 Avg:   19 Max:   16543

My 3.2.3-1 Low Latency Kernel - No Load.
[root@crappylappy ~]# cyclictest -a -t -n -p99 -i100 -d50 -l1000000 -q
# /dev/cpu_dma_latency set to 0us
T: 0 ( 1796) P:99 I:100 C:1000000 Min:      4 Act:   16 Avg:   16 Max:     612
T: 1 ( 1797) P:98 I:150 C: 666769 Min:      4 Act:   16 Avg:   16 Max:     274

CCRMA RT Kernel - No Load
[root@crappylappy ~]# cyclictest -a -t -n -p99 -i100 -d50 -l1000000 -q
# /dev/cpu_dma_latency set to 0us
T: 0 ( 1872) P:99 I:100 C:1000000 Min:      6 Act:   26 Avg:   23 Max:      98
T: 1 ( 1873) P:98 I:150 C: 666682 Min:      6 Act:   20 Avg:   23 Max:      74