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Print zstandard compression ratios

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This commit is contained in:
Robbert van der Helm 2023-02-28 18:12:58 +01:00
parent 72f57b358f
commit e621ec9b59
1 changed files with 27 additions and 4 deletions
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31
src/wrapper/state.rs
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@ -142,8 +142,18 @@ pub(crate) unsafe fn serialize_json<'a, P: Plugin>(
#[cfg(feature = "zstd")] #[cfg(feature = "zstd")]
{ {
zstd::encode_all(json.as_slice(), zstd::DEFAULT_COMPRESSION_LEVEL) let compressed = zstd::encode_all(json.as_slice(), zstd::DEFAULT_COMPRESSION_LEVEL)
.context("Could not compress state") .context("Could not compress state")?;
let state_bytes = json.len();
let compressed_state_bytes = compressed.len();
let compression_ratio = compressed_state_bytes as f32 / state_bytes as f32 * 100.0;
nih_trace!(
"Compressed {state_bytes} bytes of state to {compressed_state_bytes} bytes \
({compression_ratio:.1}% compression ratio)"
);
Ok(compressed)
} }
#[cfg(not(feature = "zstd"))] #[cfg(not(feature = "zstd"))]
{ {
@ -248,7 +258,17 @@ pub(crate) unsafe fn deserialize_json<P: Plugin>(
#[cfg(feature = "zstd")] #[cfg(feature = "zstd")]
let mut state: PluginState = match zstd::decode_all(state) { let mut state: PluginState = match zstd::decode_all(state) {
Ok(decompressed) => match serde_json::from_slice(decompressed.as_slice()) { Ok(decompressed) => match serde_json::from_slice(decompressed.as_slice()) {
Ok(s) => s, Ok(s) => {
let state_bytes = decompressed.len();
let compressed_state_bytes = state.len();
let compression_ratio = compressed_state_bytes as f32 / state_bytes as f32 * 100.0;
nih_trace!(
"Inflated {compressed_state_bytes} bytes of state to {state_bytes} bytes \
({compression_ratio:.1}% compression ratio)"
);
s
}
Err(err) => { Err(err) => {
nih_debug_assert_failure!("Error while deserializing state: {}", err); nih_debug_assert_failure!("Error while deserializing state: {}", err);
return false; return false;
@ -257,7 +277,10 @@ pub(crate) unsafe fn deserialize_json<P: Plugin>(
// Uncompressed state files can still be loaded after enabling this feature to prevent // Uncompressed state files can still be loaded after enabling this feature to prevent
// breaking existing plugin instances // breaking existing plugin instances
Err(zstd_err) => match serde_json::from_slice(state) { Err(zstd_err) => match serde_json::from_slice(state) {
Ok(s) => s, Ok(s) => {
nih_trace!("Older uncompressed state found");
s
}
Err(json_err) => { Err(json_err) => {
nih_debug_assert_failure!( nih_debug_assert_failure!(
"Error while deserializing state as either compressed or uncompressed state: \ "Error while deserializing state as either compressed or uncompressed state: \