MOVERATE (INT)(9)

💅 moverate (int) — from the Kernel API Manual, section 9

okay so bestie, welcome to the glow-up doc for the moverate module parameter. it lives in the kernel API manual (section 9, iykyk) and it's genuinely so simple it's kinda iconic for it.

✨ moverate (int) ✨

she sets the maximum buffer migration rate, measured in MB/s. that's the whole vibe. that's the job.

and the default? it's -1, which maps to 8 MB/s. so if you never touch it, you're cruising at 8 MB/s and the kernel is at peace. 🕊️

fr fr: -1 isn't "no limit," it's the shorthand that lands you on 8 MB/s. don't come for me, that's literally what the page says. 💀

🎀 SEE ALSO 🎀

bestie there are so many siblings. like, an entire friend group of module parameters, all hanging out in the Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c. go say hi to all of them:

• vramlimit (int)(9)
• vis_vramlimit (int)(9)
• gartsize (uint)(9)
• gttsize (int)(9)
• audio (int)(9)
• disp_priority (int)(9)
• hw_i2c (int)(9)
• pcie_gen2 (int)(9)
• msi (int)(9)
• svm_default_granularity (uint)(9)
• lockup_timeout (string)(9)
• dpm (int)(9)
• fw_load_type (int)(9)
• aspm (int)(9)
• runpm (int)(9)
• ip_block_mask (uint)(9)
• bapm (int)(9)
• deep_color (int)(9)
• vm_size (int)(9)
• vm_fragment_size (int)(9)
• vm_block_size (int)(9)
• vm_fault_stop (int)(9)
• vm_update_mode (int)(9)
• exp_hw_support (int)(9)
• dc (int)(9)
• sched_jobs (int)(9)
• sched_hw_submission (int)(9)
• ppfeaturemask (hexint)(9)
• forcelongtraining (uint)(9)
• pcie_gen_cap (uint)(9)
• pcie_lane_cap (uint)(9)
• cg_mask (ullong)(9)
• pg_mask (uint)(9)
• sdma_phase_quantum (uint)(9)
• disable_cu (charp)(9)
• virtual_display (charp)(9)
• lbpw (int)(9)
• gpu_recovery (int)(9)
• emu_mode (int)(9)
• ras_enable (int)(9)
• ras_mask (uint)(9)
• timeout_fatal_disable (bool)(9)
• timeout_period (uint)(9)
• si_support (int)(9)
• cik_support (int)(9)
• smu_memory_pool_size (uint)(9)
• async_gfx_ring (int)(9)
• mcbp (int)(9)
• discovery (int)(9)
• mes_log_enable (int)(9)
• uni_mes (int)(9)
• noretry (int)(9)
• force_asic_type (int)(9)
• use_xgmi_p2p (int)(9)
• sched_policy (int)(9)
• hws_max_conc_proc (int)(9)
• cwsr_enable (int)(9)
• max_num_of_queues_per_device (int)(9)
• send_sigterm (int)(9)
• halt_if_hws_hang (int)(9)
• hws_gws_support(bool)(9)
• queue_preemption_timeout_ms (int)(9)
• debug_evictions(bool)(9)
• no_system_mem_limit(bool)(9)
• no_queue_eviction_on_vm_fault (int)(9)
• mtype_local (int)(9)
• pcie_p2p (bool)(9)
• dcfeaturemask (uint)(9)
• dcdebugmask (uint)(9)
• abmlevel (uint)(9)
• damageclips (int)(9)
• tmz (int)(9)
• freesync_video (uint)(9)
• reset_method (int)(9)
• bad_page_threshold (int) Bad page threshold is specifies the(9)
• vcnfw_log (int)(9)
• sg_display (int)(9)
• umsch_mm (int)(9)
• umsch_mm_fwlog (int)(9)
• smu_pptable_id (int)(9)
• partition_mode (int)(9)
• enforce_isolation (int)(9)
• modeset (int)(9)
• seamless (int)(9)
• debug_mask (uint)(9)
• agp (int)(9)
• wbrf (int)(9)
• rebar (int)(9)
• user_queue (int)(9)
• ptl (int)(9)

lowkey obsessed with bad_page_threshold (int) Bad page threshold is specifies the(9) — that's not me being extra, that is verbatim what the page says and I refuse to touch it. she's got main character energy and a typo and we respect her. 👑😭

and that's the whole page, bestie — short, sweet, slay. 🦋

sign-off time: this one comes from ./drivers/gpu/drm/amd/amdgpu, dated October 2026. mwah 💋 go set your migration rate responsibly. 🌸