1ef3d243a0
* repo: big performance improvement for WriteContent with repo server When re-uploading previously snapshotted directory we fetch directory content `k<hash>` and very frequently end up writing the exact same content. By caching last N content IDs we can avoid costly round-trip to the server since we know that content ID was present in the session. Also added small number of asynchronous writes, which also helps with upload performance. Background writes are awaited before Flush(). Performance when snapshotting lots of small files (source code): 31.9 GB files:471205 dirs:75817, warm cache Before: 260s After: 55s (4-5x faster) * fixed tests
Kopia
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Kopia is a simple, cross-platform tool for managing encrypted backups in the cloud. It provides fast, incremental backups, secure, client-side end-to-end encryption, compression and data deduplication.
Unlike other cloud backup solutions, the user is in full control of the backup storage and responsible for purchasing one of the cloud storage products (such as Google Cloud Storage), which offer great durability and availability for the data.
Kopia in action
Using kopia command line tool:
Kopia UI - experimental user interface
Getting Started
See Documentation for more information.
Building Kopia
See Build Infrastructure for more information on building Kopia and working with the source code.
Licensing
Kopia is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.
Contribution Guidelines
Kopia is open source and contributions are welcome. For more information on how to contribute see the Contribution Guidelines.
Reporting Security Issues
If you find a security issue you'd like to disclose privately, please contact kopia-pmc@googlegroups.com or via direct message to maintainers on Slack.
Disclaimer
Kopia is a personal project and is not affiliated with, supported or endorsed by Google.
Cryptography Notice
This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See http://www.wassenaar.org/ for more information.
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with symmetric algorithms. The form and manner of this distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
