被稱為英特爾體系結構代碼分析儀，IACA是用於評估針對Intel CPU的代碼調度的高級工具。它以三種模式運行：

吞吐量模式：

IACA traces the sequence of instructions as they progress through pipelines.
Capabilities and Applications:
Estimates scheduling for modern Intel CPUs (ranging from Nehalem to Broadwell, depending on the version).
• Reports in detailed ASCII or interactive Graphviz charts.
Supports C, C , and x86 assembly analysis.

Usage:

• Instructions for IACA usage vary depending on your programming language.
• C/C ：
• 包括必要的IACA標頭（IACAMARKS.H），然後在目標循環周圍放置啟動和結尾標記：
zingbly（x86）：

輸出解釋：輸出報告提供了有關目標代碼的調度和瓶頸的詳細信息。例如，請考慮以下彙編片段：

。 l2： vmovaps ymm1，[rdi rax]; l2 vfmadd231ps ymm1，ymm2，[rsi rax]; l2 vmovaps [rdx rax]，ymm1; S1 添加RAX，32;添加 jne .l2; jmp

吞吐量分析報告 ------------------------------------ 塊吞吐量：1.55循環吞吐量瓶頸：前端，port2_agu，port3_agu [港口壓力故障] | 操作說明 ------------------------------------------------------------------------------ | | vmovaps ymm1，ymmword ptr [rdi rax*1] | 0.5 cp | | 1.5 cp | vfmadd231ps ymm1，ymm2，ymmword ptr [rsi rax*1] | 1.5 cp | vmovaps ymmword ptr [rdx rax*1]，ymm1 | 1 cp | 添加RAX，0x20 | 0 CP | jnz 0xffffffffffffffffffffec 從此輸出中，IACA將Haswell Frontend和Port 2和3的Agu標識為瓶頸。 It suggests that optimizing the store instruction to be processed by Port 7 could improve performance.

Limitations:

/* C or C   Usage */

while(cond){
    IACA_START
    /* Innermost Loop Body */
    /* ... */
}
IACA_END

It does not support certain instructions, which are ignored in analysis.

It is compatible with CPUs from Nehalem向後，不包括較舊的型號。