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157086e750
RichString_writeFrom takes a top spot during performance analysis due to the calls to mbstowcs() and iswprint(). Most of the time we know in advance that we are only going to print regular ASCII characters.
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
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htop - ZfsCompressedArcMeter.c
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(C) 2004-2011 Hisham H. Muhammad
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Released under the GNU GPLv2, see the COPYING file
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in the source distribution for its full text.
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*/
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#include "ZfsCompressedArcMeter.h"
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#include "CRT.h"
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#include "Meter.h"
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#include "Object.h"
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#include "Platform.h"
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#include "RichString.h"
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#include "XUtils.h"
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#include "zfs/ZfsArcStats.h"
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static const int ZfsCompressedArcMeter_attributes[] = {
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ZFS_COMPRESSED
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};
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void ZfsCompressedArcMeter_readStats(Meter* this, const ZfsArcStats* stats) {
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if ( stats->isCompressed ) {
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this->total = stats->uncompressed;
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this->values[0] = stats->compressed;
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} else {
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// For uncompressed ARC, report 1:1 ratio
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this->total = stats->size;
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this->values[0] = stats->size;
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}
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}
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static void ZfsCompressedArcMeter_printRatioString(const Meter* this, char* buffer, size_t size) {
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xSnprintf(buffer, size, "%.2f:1", this->total / this->values[0]);
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}
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static void ZfsCompressedArcMeter_updateValues(Meter* this, char* buffer, size_t size) {
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Platform_setZfsCompressedArcValues(this);
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ZfsCompressedArcMeter_printRatioString(this, buffer, size);
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}
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static void ZfsCompressedArcMeter_display(const Object* cast, RichString* out) {
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const Meter* this = (const Meter*)cast;
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if (this->values[0] > 0) {
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char buffer[50];
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Meter_humanUnit(buffer, this->total, sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " Uncompressed, ");
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Meter_humanUnit(buffer, this->values[0], sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " Compressed, ");
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ZfsCompressedArcMeter_printRatioString(this, buffer, sizeof(buffer));
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RichString_appendAscii(out, CRT_colors[METER_VALUE], buffer);
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RichString_appendAscii(out, CRT_colors[METER_TEXT], " Ratio");
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} else {
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RichString_writeAscii(out, CRT_colors[METER_TEXT], " ");
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RichString_appendAscii(out, CRT_colors[FAILED_SEARCH], "Compression Unavailable");
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}
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}
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const MeterClass ZfsCompressedArcMeter_class = {
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.super = {
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.extends = Class(Meter),
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.delete = Meter_delete,
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.display = ZfsCompressedArcMeter_display,
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},
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.updateValues = ZfsCompressedArcMeter_updateValues,
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.defaultMode = TEXT_METERMODE,
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.maxItems = 1,
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.total = 100.0,
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.attributes = ZfsCompressedArcMeter_attributes,
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.name = "ZFSCARC",
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.uiName = "ZFS CARC",
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.description = "ZFS CARC: Compressed ARC statistics",
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.caption = "ARC: "
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};
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