hi guys,
I have some questions about librbd snapshot:
int snap_create(const char *snapname);
int snap_remove(const char *snapname);
int snap_rollback(const char *snap_name);
int snap_set(const char *snap_name);
int copy(IoCtx& src_io_ctx, const char *srcname, IoCtx& dest_io_ctx,
const char *destname);
If I create a snapshot S1, and then write 10GB data, and then I want
to create a snapshot S2. About how long time will the "snap_create"
take? May take just several seconds?
And how long will it task when remove S2?
How long when rollback to S1?
How long when set to S1?
When I open snapshot S2 as an io_ctx, and copy it with the copy
interface, how long time will it spent?
Thx very much!
Simon
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