v86/src/browser/print_stats.js

281 lines
9.9 KiB
JavaScript

"use strict";
const print_stats = {
stats_to_string: function(cpu)
{
return print_stats.print_misc_stats(cpu) +
print_stats.print_instruction_counts(cpu);
},
print_misc_stats: function(cpu)
{
let text = "";
const stat_names = [
"COMPILE",
"COMPILE_SKIPPED_NO_NEW_ENTRY_POINTS",
"COMPILE_SUCCESS",
"COMPILE_WRONG_ADDRESS_SPACE",
"COMPILE_CUT_OFF_AT_END_OF_PAGE",
"COMPILE_WITH_LOOP_SAFETY",
"COMPILE_PAGE",
"COMPILE_PAGE/COMPILE_SUCCESS",
"COMPILE_PAGE_SKIPPED_NO_NEW_ENTRY_POINTS",
"COMPILE_BASIC_BLOCK",
"COMPILE_DUPLICATED_BASIC_BLOCK",
"COMPILE_WASM_BLOCK",
"COMPILE_WASM_LOOP",
"COMPILE_DISPATCHER",
"COMPILE_ENTRY_POINT",
"COMPILE_WASM_TOTAL_BYTES",
"COMPILE_WASM_TOTAL_BYTES/COMPILE_PAGE",
"JIT_CACHE_OVERRIDE",
"JIT_CACHE_OVERRIDE_DIFFERENT_STATE_FLAGS",
"RUN_INTERPRETED",
"RUN_INTERPRETED_PENDING",
"RUN_INTERPRETED_NEAR_END_OF_PAGE",
"RUN_INTERPRETED_DIFFERENT_STATE",
"RUN_INTERPRETED_MISSED_COMPILED_ENTRY_RUN_INTERPRETED",
"RUN_INTERPRETED_MISSED_COMPILED_ENTRY_LOOKUP",
"RUN_INTERPRETED_STEPS",
"RUN_FROM_CACHE",
"RUN_FROM_CACHE_STEPS",
"RUN_FROM_CACHE_STEPS/RUN_FROM_CACHE",
"RUN_FROM_CACHE_STEPS/RUN_INTERPRETED_STEPS",
"DIRECT_EXIT",
"INDIRECT_JUMP",
"INDIRECT_JUMP_NO_ENTRY",
"NORMAL_PAGE_CHANGE",
"NORMAL_FALLTHRU",
"NORMAL_FALLTHRU_WITH_TARGET_BLOCK",
"NORMAL_BRANCH",
"NORMAL_BRANCH_WITH_TARGET_BLOCK",
"CONDITIONAL_JUMP",
"CONDITIONAL_JUMP_PAGE_CHANGE",
"CONDITIONAL_JUMP_EXIT",
"CONDITIONAL_JUMP_FALLTHRU",
"CONDITIONAL_JUMP_FALLTHRU_WITH_TARGET_BLOCK",
"CONDITIONAL_JUMP_BRANCH",
"CONDITIONAL_JUMP_BRANCH_WITH_TARGET_BLOCK",
"DISPATCHER_SMALL",
"DISPATCHER_LARGE",
"LOOP",
"LOOP_SAFETY",
"CONDITION_OPTIMISED",
"CONDITION_UNOPTIMISED",
"FAILED_PAGE_CHANGE",
"SAFE_READ_FAST",
"SAFE_READ_SLOW_PAGE_CROSSED",
"SAFE_READ_SLOW_NOT_VALID",
"SAFE_READ_SLOW_NOT_USER",
"SAFE_READ_SLOW_IN_MAPPED_RANGE",
"SAFE_WRITE_FAST",
"SAFE_WRITE_SLOW_PAGE_CROSSED",
"SAFE_WRITE_SLOW_NOT_VALID",
"SAFE_WRITE_SLOW_NOT_USER",
"SAFE_WRITE_SLOW_IN_MAPPED_RANGE",
"SAFE_WRITE_SLOW_READ_ONLY",
"SAFE_WRITE_SLOW_HAS_CODE",
"SAFE_READ_WRITE_FAST",
"SAFE_READ_WRITE_SLOW_PAGE_CROSSED",
"SAFE_READ_WRITE_SLOW_NOT_VALID",
"SAFE_READ_WRITE_SLOW_NOT_USER",
"SAFE_READ_WRITE_SLOW_IN_MAPPED_RANGE",
"SAFE_READ_WRITE_SLOW_READ_ONLY",
"SAFE_READ_WRITE_SLOW_HAS_CODE",
"PAGE_FAULT",
"TLB_MISS",
"DO_RUN",
"DO_MANY_CYCLES",
"CYCLE_INTERNAL",
"INVALIDATE_ALL_MODULES_NO_FREE_WASM_INDICES",
"INVALIDATE_MODULE_WRITTEN_WHILE_COMPILED",
"INVALIDATE_MODULE_UNUSED_AFTER_OVERWRITE",
"INVALIDATE_MODULE_DIRTY_PAGE",
"INVALIDATE_PAGE_HAD_CODE",
"INVALIDATE_PAGE_HAD_ENTRY_POINTS",
"DIRTY_PAGE_DID_NOT_HAVE_CODE",
"RUN_FROM_CACHE_EXIT_SAME_PAGE",
"RUN_FROM_CACHE_EXIT_NEAR_END_OF_PAGE",
"RUN_FROM_CACHE_EXIT_DIFFERENT_PAGE",
"CLEAR_TLB",
"FULL_CLEAR_TLB",
"TLB_FULL",
"TLB_GLOBAL_FULL",
"MODRM_SIMPLE_REG",
"MODRM_SIMPLE_REG_WITH_OFFSET",
"MODRM_SIMPLE_CONST_OFFSET",
"MODRM_COMPLEX",
"SEG_OFFSET_OPTIMISED",
"SEG_OFFSET_NOT_OPTIMISED",
];
let j = 0;
const stat_values = {};
for(let i = 0; i < stat_names.length; i++)
{
const name = stat_names[i];
let value;
if(name.includes("/"))
{
j++; // skip profiler_stat_get
const [left, right] = name.split("/");
value = stat_values[left] / stat_values[right];
}
else
{
let stat = stat_values[name] = cpu.wm.exports["profiler_stat_get"](i - j);
value = stat >= 100e6 ? Math.round(stat / 1e6) + "m" : stat >= 100e3 ? Math.round(stat / 1e3) + "k" : stat;
}
text += name + "=" + value + "\n";
}
text += "\n";
const tlb_entries = cpu.wm.exports["get_valid_tlb_entries_count"]();
const global_tlb_entries = cpu.wm.exports["get_valid_global_tlb_entries_count"]();
const nonglobal_tlb_entries = tlb_entries - global_tlb_entries;
text += "TLB_ENTRIES=" + tlb_entries + " (" + global_tlb_entries + " global, " + nonglobal_tlb_entries + " non-global)\n";
text += "WASM_TABLE_FREE=" + cpu.wm.exports["jit_get_wasm_table_index_free_list_count"]() + "\n";
text += "JIT_CACHE_SIZE=" + cpu.wm.exports["jit_get_cache_size"]() + "\n";
text += "FLAT_SEGMENTS=" + cpu.wm.exports["has_flat_segmentation"]() + "\n";
text += "do_many_cycles avg: " + (do_many_cycles_total / do_many_cycles_count || 0) + "\n";
text += "wasm memory size: " + (cpu.wasm_memory.buffer.byteLength >> 20) + "m\n";
text += "Config:\n";
text += "MAX_PAGES=" + cpu.wm.exports["get_config"](0) + "\n";
text += "JIT_USE_LOOP_SAFETY=" + cpu.wm.exports["get_config"](1) + "\n";
text += "MAX_EXTRA_BASIC_BLOCKS=" + cpu.wm.exports["get_config"](2) + "\n";
return text;
},
print_instruction_counts: function(cpu)
{
return [
print_stats.print_instruction_counts_offset(cpu, false, false, false, false),
print_stats.print_instruction_counts_offset(cpu, true, false, false, false),
print_stats.print_instruction_counts_offset(cpu, false, true, false, false),
print_stats.print_instruction_counts_offset(cpu, false, false, true, false),
print_stats.print_instruction_counts_offset(cpu, false, false, false, true),
].join("\n\n");
},
print_instruction_counts_offset: function(cpu, compiled, jit_exit, unguarded_register, wasm_size)
{
let text = "";
const counts = [];
const label =
compiled ? "compiled" :
jit_exit ? "jit exit" :
unguarded_register ? "unguarded register" :
wasm_size ? "wasm size" :
"executed";
for(let opcode = 0; opcode < 0x100; opcode++)
{
for(let fixed_g = 0; fixed_g < 8; fixed_g++)
{
for(let is_mem of [false, true])
{
const count = cpu.wm.exports["get_opstats_buffer"](compiled, jit_exit, unguarded_register, wasm_size, opcode, false, is_mem, fixed_g);
counts.push({ opcode, count, is_mem, fixed_g });
const count_0f = cpu.wm.exports["get_opstats_buffer"](compiled, jit_exit, unguarded_register, wasm_size, opcode, true, is_mem, fixed_g);
counts.push({ opcode: 0x0f00 | opcode, count: count_0f, is_mem, fixed_g });
}
}
}
let total = 0;
const prefixes = new Set([
0x26, 0x2E, 0x36, 0x3E,
0x64, 0x65, 0x66, 0x67,
0xF0, 0xF2, 0xF3,
]);
for(let { count, opcode } of counts)
{
if(!prefixes.has(opcode))
{
total += count;
}
}
if(total === 0)
{
return "";
}
const per_opcode = new Uint32Array(0x100);
const per_opcode0f = new Uint32Array(0x100);
for(let { opcode, count } of counts)
{
if((opcode & 0xFF00) == 0x0F00)
{
per_opcode0f[opcode & 0xFF] += count;
}
else
{
per_opcode[opcode & 0xFF] += count;
}
}
text += "------------------\n";
text += "Total: " + total + "\n";
const factor = total > 1e7 ? 1000 : 1;
const max_count = Math.max.apply(Math,
counts.map(({ count }) => Math.round(count / factor))
);
const pad_length = String(max_count).length;
text += `Instruction counts ${label} (in ${factor}):\n`;
for(let i = 0; i < 0x100; i++)
{
text += h(i, 2).slice(2) + ":" + v86util.pads(Math.round(per_opcode[i] / factor), pad_length);
if(i % 16 == 15)
text += "\n";
else
text += " ";
}
text += "\n";
text += `Instruction counts ${label} (0f, in ${factor}):\n`;
for(let i = 0; i < 0x100; i++)
{
text += h(i & 0xFF, 2).slice(2) + ":" + v86util.pads(Math.round(per_opcode0f[i] / factor), pad_length);
if(i % 16 == 15)
text += "\n";
else
text += " ";
}
text += "\n";
const top_counts = counts.filter(({ count }) => count).sort(({ count: count1 }, { count: count2 }) => count2 - count1);
for(let { opcode, is_mem, fixed_g, count } of top_counts.slice(0, 200))
{
let opcode_description = opcode.toString(16) + "_" + fixed_g + (is_mem ? "_m" : "_r");
text += opcode_description + ":" + (count / total * 100).toFixed(2) + " ";
}
text += "\n";
return text;
},
};
if(typeof module !== "undefined" && typeof module.exports !== "undefined")
{
module.exports["print_stats"] = print_stats;
}