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Code Issues Releases Wiki Activity

xz: Make filter_memusages a local variable

This commit is contained in:
Lasse Collin 2024-05-12 14:51:37 +03:00
parent 347b412a93
commit 87011e40c1
1 changed files with 21 additions and 14 deletions
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35
src/xz/coder.c
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@ -49,12 +49,6 @@ static lzma_filter filters[NUM_FILTER_CHAIN_MAX][LZMA_FILTERS_MAX + 1];
/// default filter chain. /// default filter chain.
static uint32_t filters_used_mask = 1; static uint32_t filters_used_mask = 1;
#ifdef HAVE_ENCODERS
/// Track the memory usage for all filter chains (default or --filtersX).
/// The memory usage may need to be scaled down depending on the memory limit.
static uint64_t filter_memusages[ARRAY_SIZE(filters)];
#endif
/// Input and output buffers /// Input and output buffers
static io_buf in_buf; static io_buf in_buf;
static io_buf out_buf; static io_buf out_buf;
@ -250,7 +244,8 @@ validate_block_list_filter(const uint32_t filter_num)
// Calculate the memory usage of each filter chain. // Calculate the memory usage of each filter chain.
// Return the maximum memory usage of all of the filter chains. // Return the maximum memory usage of all of the filter chains.
static uint64_t static uint64_t
filters_memusage_max(const lzma_mt *mt, bool encode) filters_memusage_max(uint64_t *filter_memusages,
const lzma_mt *mt, bool encode)
{ {
uint64_t max_memusage = 0; uint64_t max_memusage = 0;
@ -273,12 +268,10 @@ filters_memusage_max(const lzma_mt *mt, bool encode)
if (mt != NULL) { if (mt != NULL) {
mt_local.filters = filters[i]; mt_local.filters = filters[i];
memusage = lzma_stream_encoder_mt_memusage(&mt_local); memusage = lzma_stream_encoder_mt_memusage(&mt_local);
filter_memusages[i] = memusage;
} else } else
#endif #endif
if (encode) { if (encode) {
memusage = lzma_raw_encoder_memusage(filters[i]); memusage = lzma_raw_encoder_memusage(filters[i]);
filter_memusages[i] = memusage;
} }
#ifdef HAVE_DECODERS #ifdef HAVE_DECODERS
else { else {
@ -286,6 +279,9 @@ filters_memusage_max(const lzma_mt *mt, bool encode)
} }
#endif #endif
if (filter_memusages != NULL)
filter_memusages[i] = memusage;
if (memusage > max_memusage) if (memusage > max_memusage)
max_memusage = memusage; max_memusage = memusage;
} }
@ -456,6 +452,14 @@ coder_set_compression_settings(void)
// will be replaced. // will be replaced.
uint64_t memory_limit = hardware_memlimit_get(opt_mode); uint64_t memory_limit = hardware_memlimit_get(opt_mode);
uint64_t memory_usage = UINT64_MAX; uint64_t memory_usage = UINT64_MAX;
#ifdef HAVE_ENCODERS
// Memory usage for each encoder filter chain (default
// or --filtersX). The encoder options may need to be
// scaled down depending on the memory usage limit.
uint64_t filter_memusages[ARRAY_SIZE(filters)];
#endif
if (opt_mode == MODE_COMPRESS) { if (opt_mode == MODE_COMPRESS) {
#ifdef HAVE_ENCODERS #ifdef HAVE_ENCODERS
# ifdef MYTHREAD_ENABLED # ifdef MYTHREAD_ENABLED
@ -505,7 +509,7 @@ coder_set_compression_settings(void)
mt_options.block_size = block_size; mt_options.block_size = block_size;
mt_options.check = check; mt_options.check = check;
memory_usage = filters_memusage_max( memory_usage = filters_memusage_max(filter_memusages,
&mt_options, true); &mt_options, true);
if (memory_usage != UINT64_MAX) if (memory_usage != UINT64_MAX)
message(V_DEBUG, _("Using up to %" PRIu32 message(V_DEBUG, _("Using up to %" PRIu32
@ -514,7 +518,8 @@ coder_set_compression_settings(void)
} else } else
# endif # endif
{ {
memory_usage = filters_memusage_max(NULL, true); memory_usage = filters_memusage_max(filter_memusages,
NULL, true);
} }
#endif #endif
} else { } else {
@ -535,7 +540,8 @@ coder_set_compression_settings(void)
#if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS) #if defined(HAVE_ENCODERS) && defined(HAVE_DECODERS)
if (opt_mode == MODE_COMPRESS && message_verbosity_get() >= V_DEBUG) { if (opt_mode == MODE_COMPRESS && message_verbosity_get() >= V_DEBUG) {
const uint64_t decmem = filters_memusage_max(NULL, false); const uint64_t decmem = filters_memusage_max(
NULL, NULL, false);
if (decmem != UINT64_MAX) if (decmem != UINT64_MAX)
message(V_DEBUG, _("Decompression will need " message(V_DEBUG, _("Decompression will need "
"%s MiB of memory."), uint64_to_str( "%s MiB of memory."), uint64_to_str(
@ -562,7 +568,7 @@ coder_set_compression_settings(void)
// Reduce the number of threads by one and check // Reduce the number of threads by one and check
// the memory usage. // the memory usage.
--mt_options.threads; --mt_options.threads;
memory_usage = filters_memusage_max( memory_usage = filters_memusage_max(filter_memusages,
&mt_options, true); &mt_options, true);
if (memory_usage == UINT64_MAX) if (memory_usage == UINT64_MAX)
message_bug(); message_bug();
@ -625,7 +631,8 @@ coder_set_compression_settings(void)
// the multithreaded mode but the output // the multithreaded mode but the output
// is also different. // is also different.
hardware_threads_set(1); hardware_threads_set(1);
memory_usage = filters_memusage_max(NULL, true); memory_usage = filters_memusage_max(filter_memusages,
NULL, true);
message(V_WARNING, _("Switching to single-threaded mode " message(V_WARNING, _("Switching to single-threaded mode "
"to not exceed the memory usage limit of %s MiB"), "to not exceed the memory usage limit of %s MiB"),
uint64_to_str(round_up_to_mib(memory_limit), 0)); uint64_to_str(round_up_to_mib(memory_limit), 0));