Commit Graph

12 Commits

Author SHA1 Message Date
Jarek Kowalski
4a47bc3210 logging: switched from go-logging to zap (#1376)
This is much more efficient in terms of memory allocations
and speeds up backup due to less GC pressure.

Fixes #1345
2021-10-12 22:52:24 -07:00
Jarek Kowalski
8b760b66a8 logging: added memoization of Logger instances per context (#1369) 2021-10-09 05:02:18 -07:00
Eng Zer Jun
73e492c9db refactor: move from io/ioutil to io and os package (#1360)
* refactor: move from io/ioutil to io and os package

The io/ioutil package has been deprecated as of Go 1.16, see
https://golang.org/doc/go1.16#ioutil. This commit replaces the existing
io/ioutil functions with their new definitions in io and os packages.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>

* chore: remove //nolint:gosec for os.ReadFile

At the time of this commit, the G304 rule of gosec does not include the
`os.ReadFile` function. We remove `//nolint:gosec` temporarily until
https://github.com/securego/gosec/pull/706 is merged.

Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2021-10-06 08:39:10 -07:00
Jarek Kowalski
d60d33bda5 upload: memory usage and speed improvements (#1336)
* upload: do not launch error group when doing non-parallel upload

* encryption: refactored code to reduce slice allocation, this uncovered a minor subtle bug in index recovery due to manual memory management

* content: fixed use-after-free bug during index recovery that started failing test after encryption memory management improvements

* gather: tweaked retention and chunk sizes

* gather: added typicalContiguousAllocator with 8MB chunks for default configuration
2021-10-01 22:57:37 -07:00
Jarek Kowalski
792cc874dc repo: allow reusing of object writer buffers (#1315)
This reduces memory consumption and speeds up backups.

1. Backing up kopia repository (3.5 GB files:133102 dirs:20074):

before: 25s, 490 MB
after: 21s, 445 MB

2. Large files (14.8 GB, 76 files)

before: 30s, 597 MB
after: 28s, 495 MB

All tests repeated 5 times for clean local filesystem repo.
2021-09-25 14:54:31 -07:00
Jarek Kowalski
bd7e9641da fixed minor buffer leak from internal logger, added allocation tracker (#1290) 2021-09-14 06:13:19 -07:00
Jarek Kowalski
9cebffc628 Fix endurance test (#1254) 2021-08-27 04:22:18 -07:00
Jarek Kowalski
a203fa414d gather: MakeContiguous support for arbitrary chunk sizes (#1247) 2021-08-22 12:33:36 -07:00
Jarek Kowalski
35d0f31c0d huge: replaced the use of allocated byte slices with populating gather.WriteBuffer in the repository (#1244)
This helps recycle buffers more efficiently during snapshots.
Also, improved memory tracking, enabled profiling flags and added pprof
by default.
2021-08-20 08:45:10 -07:00
Jarek Kowalski
9a756c719f Enabled race detector in CI, fixed a few data races (#919)
* content: fixed data race in IterateUnreferencedBlobs

* upload: fixed data race between uploader and estimator

* testing: fixed data race in repo/blob/logging test

* makefile: run tests on CI/linux/amd64 with -race

* robustness: fixed test race

* content: fixed data race getContentDataUnlocked that triggers TestParallelWrites - looks scary but in practice very hard to trigger in real life and does not cause data corruption

* testing: reduce test complexity under race detector

* server: fixed minor race in refreshStatus()

* testing: reduced depth of sharedTestDataDir2

* ci: run race detector in separate job

* ci: run unit test race detector in parallel to integration tests
2021-04-02 18:21:04 -07:00
Jarek Kowalski
e03971fc59 Upgraded linter to v1.33.0 (#734)
* linter: upgraded to 1.33, disabled some linters

* lint: fixed 'errorlint' errors

This ensures that all error comparisons use errors.Is() or errors.As().
We will be wrapping more errors going forward so it's important that
error checks are not strict everywhere.

Verified that there are no exceptions for errorlint linter which
guarantees that.

* lint: fixed or suppressed wrapcheck errors

* lint: nolintlint and misc cleanups

Co-authored-by: Julio López <julio+gh@kasten.io>
2020-12-21 22:39:22 -08:00
Jarek Kowalski
60977812f0 Support for gather writes (#373)
, where blob.Storage.PutBlob gets a list of slices and writes them sequentially 
* performance: added gather.Bytes and gather.WriteBuffer

They are similar to bytes.Buffer but instead of managing a single
byte slice, they maintain a list of slices that and when they run out of
space they allocate new fixed-size slice from a free list.

This helps keep memory allocations completely under control regardless
of the size of data written.

* switch from byte slices and bytes.Buffer to gather.Bytes.

This is mostly mechanical, the only cases where it's not involve blob
storage providers, where we leverage the fact that we don't need to
ever concatenate the slices into one and instead we can do gather
writes.

* PR feedback
2020-03-24 15:05:52 -07:00