Age | Commit message (Collapse) | Author |
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On my machine, reading 512-byte blocks from /dev/urandom
(same via getentropy syscall) is a lot faster in terms of
throughput:
Blocksize Throughput
16 28.18 MB/s
512 83.75 MB/s
For a single-threaded streaming write, this drops the CPU usage of
nonceGenerator.Get to almost 1/3:
flat flat% sum% cum cum%
Before 0 0% 95.08% 0.35s 2.92% github.com/rfjakob/gocryptfs/internal/cryptocore.(*nonceGenerator).Get
After 0.01s 0.092% 92.34% 0.13s 1.20% github.com/rfjakob/gocryptfs/internal/cryptocore.(*nonceGenerator).Get
This change makes the nonce reading single-threaded, which may
hurt massively-parallel writes.
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This check would need locking to be multithreading-safe.
But as it is in the fastpath, just remove it.
rand.Read() already guarantees that the value is random.
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We want all panics to show up in the syslog.
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tlog is used heavily everywhere and deserves a shorter name.
Renamed using sed magic, without any manual rework:
find * -type f -exec sed -i 's/toggledlog/tlog/g' {} +
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"git status" for reference:
deleted: cryptfs/cryptfs.go
deleted: cryptfs/names_core.go
modified: integration_tests/cli_test.go
modified: integration_tests/helpers.go
renamed: cryptfs/config_file.go -> internal/configfile/config_file.go
renamed: cryptfs/config_test.go -> internal/configfile/config_test.go
renamed: cryptfs/config_test/.gitignore -> internal/configfile/config_test/.gitignore
renamed: cryptfs/config_test/PlaintextNames.conf -> internal/configfile/config_test/PlaintextNames.conf
renamed: cryptfs/config_test/StrangeFeature.conf -> internal/configfile/config_test/StrangeFeature.conf
renamed: cryptfs/config_test/v1.conf -> internal/configfile/config_test/v1.conf
renamed: cryptfs/config_test/v2.conf -> internal/configfile/config_test/v2.conf
renamed: cryptfs/kdf.go -> internal/configfile/kdf.go
renamed: cryptfs/kdf_test.go -> internal/configfile/kdf_test.go
renamed: cryptfs/cryptfs_content.go -> internal/contentenc/content.go
new file: internal/contentenc/content_api.go
renamed: cryptfs/content_test.go -> internal/contentenc/content_test.go
renamed: cryptfs/file_header.go -> internal/contentenc/file_header.go
renamed: cryptfs/intrablock.go -> internal/contentenc/intrablock.go
renamed: cryptfs/address_translation.go -> internal/contentenc/offsets.go
new file: internal/cryptocore/crypto_api.go
renamed: cryptfs/gcm_go1.4.go -> internal/cryptocore/gcm_go1.4.go
renamed: cryptfs/gcm_go1.5.go -> internal/cryptocore/gcm_go1.5.go
renamed: cryptfs/nonce.go -> internal/cryptocore/nonce.go
renamed: cryptfs/openssl_aead.go -> internal/cryptocore/openssl_aead.go
renamed: cryptfs/openssl_benchmark.bash -> internal/cryptocore/openssl_benchmark.bash
renamed: cryptfs/openssl_test.go -> internal/cryptocore/openssl_test.go
new file: internal/nametransform/name_api.go
new file: internal/nametransform/names_core.go
renamed: cryptfs/names_diriv.go -> internal/nametransform/names_diriv.go
renamed: cryptfs/names_noiv.go -> internal/nametransform/names_noiv.go
renamed: cryptfs/names_test.go -> internal/nametransform/names_test.go
new file: internal/nametransform/pad16.go
renamed: cryptfs/log.go -> internal/toggledlog/log.go
renamed: cryptfs/log_go1.4.go -> internal/toggledlog/log_go1.4.go
renamed: cryptfs/log_go1.5.go -> internal/toggledlog/log_go1.5.go
modified: main.go
modified: masterkey.go
modified: pathfs_frontend/file.go
modified: pathfs_frontend/file_holes.go
modified: pathfs_frontend/fs.go
modified: pathfs_frontend/fs_dir.go
modified: pathfs_frontend/names.go
modified: test.bash
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