thin-provisioning-tools/thin-provisioning/commands.cc
Joe Thornber 61de3f9287 [thin_metadata_pack/unpack] Replace C++ implementation with a Rust one.
The Rust implementation is multithreaded, performs better in general and
does custom compression of btree nodes to achieve much better compression
ratios.  unpack also checksums expanded metadata to validate it.

Format version has jumped to 3, no backwards compatibility, but I think
that's ok since we never made a release that contained the C++ version
of these tools.

Benchmarks
==========

On an 8 core, 16 hyperthread machine.

metadata 1G, full:

      Pack size    pack time     unpack time
------------------------------------------------------
C++      193M        50.3s          6.9s (no verify)
Rust      70M         1.4s          1.8s (verify)

metadata 16G, sparse:

       Pack size    pack time     unpack time
------------------------------------------------------
C++      21M          68s           1s   (no verify)
Rust      4M           8.6s         0.5s (verify)
2020-06-09 09:15:00 +01:00

33 lines
1.2 KiB
C++

#include "thin-provisioning/commands.h"
using namespace base;
using namespace thin_provisioning;
//----------------------------------------------------------------
void
thin_provisioning::register_thin_commands(base::application &app)
{
app.add_cmd(command::ptr(new thin_check_cmd()));
app.add_cmd(command::ptr(new thin_delta_cmd()));
app.add_cmd(command::ptr(new thin_dump_cmd()));
app.add_cmd(command::ptr(new thin_ls_cmd()));
app.add_cmd(command::ptr(new thin_metadata_size_cmd()));
app.add_cmd(command::ptr(new thin_restore_cmd()));
app.add_cmd(command::ptr(new thin_repair_cmd()));
app.add_cmd(command::ptr(new thin_rmap_cmd()));
app.add_cmd(command::ptr(new thin_trim_cmd()));
#ifdef DEV_TOOLS
app.add_cmd(command::ptr(new thin_ll_dump_cmd()));
app.add_cmd(command::ptr(new thin_ll_restore_cmd()));
app.add_cmd(command::ptr(new thin_scan_cmd()));
app.add_cmd(command::ptr(new thin_generate_metadata_cmd()));
app.add_cmd(command::ptr(new thin_show_duplicates_cmd()));
app.add_cmd(command::ptr(new thin_show_metadata_cmd()));
app.add_cmd(command::ptr(new thin_journal_cmd()));
#endif
}
//----------------------------------------------------------------