RedisBigData

BGSAVE and BGREWRITEAOF blocking fork() call

fork.c && ./a.out
allocated:     1 MB, fork() took 0.000
allocated:    10 MB, fork() took 0.001
allocated:   100 MB, fork() took 0.007
allocated:  1000 MB, fork() took 0.059
allocated: 10000 MB, fork() took 0.460
allocated: 20000 MB, fork() took 0.895
allocated: 30000 MB, fork() took 1.327
allocated: 40000 MB, fork() took 1.759
allocated: 50000 MB, fork() took 2.190
allocated: 60000 MB, fork() took 2.621
allocated: 70000 MB, fork() took 3.051
allocated: 80000 MB, fork() took 3.483
allocated: 90000 MB, fork() took 3.911
allocated: 100000 MB, fork() took 4.340
allocated: 110000 MB, fork() took 4.770
allocated: 120000 MB, fork() took 5.202

Using multiple cores

Splitting data into multiple instances

BGSAVE / AOFSAVE memory usage, and copy on write

BGSAVE / AOFSAVE time for big datasets

Non blocking hash table