intel_pt_fast_forward(9)

💅 intel_pt_fast_forward — like, the kernel API manual (section 9, bestie)

okay so real talk, this is intel_pt_fast_forward from the Kernel API Manual, section 9. yes, section 9. we love a numbered section. let's get into it ✨

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🎀 NAME 🎀

intel_pt_fast_forward — reposition decoder forwards.

like literally just. scoot the decoder forward. that's the whole vibe. no cap. 🦋

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✨ SYNOPSIS ✨

int intel_pt_fast_forward (struct intel_pt_decoder *decoder , uint64_t
timestamp );

that's the whole signature, character for character, don't @ me 💅

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🌸 ARGUMENTS 🌸

• decoder — the Intel PT decoder. that's her. the main character. the one we're repositioning. 👑
• timestamp — the timestamp we're fast forwarding towards. like the destination. the goal. the moment we're aiming at. ⭐

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💖 DESCRIPTION 💖

okay bestie here's the tea: this function repositions the decoder at the last PSB with a timestamp earlier than timestamp.

that's it. that's the whole function. she finds the right PSB, she parks the decoder there. iconic behavior honestly. 🧚

ngl the "earlier than" part matters — read it twice if you have to. earlier. not later. 💀

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🔥 RETURN 🔥

• 0 on success. slay. 🎉
• a negative error code on failure. 🙈 not slay, but at least she tells you.

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🌈 SEE ALSO 🌈

• Kernel file ./tools/perf/util/intel-pt-decoder/intel-pt-decoder.c — go read the source, iykyk 🫶
• intel_pt_next_psb(9)
• intel_pt_step_psb(9)
• intel_pt_last_psb(9)
• intel_pt_next_tsc(9)
• intel_pt_tsc_cmp(9)
• adj_for_padding(9)
• intel_pt_find_overlap_tsc(9)
• intel_pt_find_overlap(9)
• struct fast_forward_data(9)
• intel_pt_ff_cb(9)

like a whole friend group of functions fr fr 💜

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mwah 💋 this page came from ./tools/perf/util/intel-pt-dec..., dated October 2026, and she's living her best life in section 9. take care of her. 🍓