Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful

[PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 01/43] KVM: VMX: Don't unblock vCPU w/ Posted IRQ if IRQs are disabled in guest · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 02/43] KVM: SVM: Ensure target pCPU is read once when signalling AVIC doorbell · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 03/43] KVM: s390: Ensure kvm_arch_no_poll() is read once when blocking vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 04/43] KVM: Force PPC to define its own rcuwait object · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 05/43] KVM: Update halt-polling stats if and only if halt-polling was attempted · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 05/43] KVM: Update halt-polling stats if and only if halt-polling was attempted · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 06/43] KVM: Refactor and document halt-polling stats update helper · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 06/43] KVM: Refactor and document halt-polling stats update helper · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 07/43] KVM: Reconcile discrepancies in halt-polling stats · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 07/43] KVM: Reconcile discrepancies in halt-polling stats · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 08/43] KVM: s390: Clear valid_wakeup in kvm_s390_handle_wait(), not in arch hook · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 09/43] KVM: Drop obsolete kvm_arch_vcpu_block_finish() · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 09/43] KVM: Drop obsolete kvm_arch_vcpu_block_finish() · Anup Patel <anup@brainfault.org> · 2021-10-22
[PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Marc Zyngier <maz@kernel.org> · 2021-10-26
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-26
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-30
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Marc Zyngier <maz@kernel.org> · 2021-11-30
Re: [PATCH v2 10/43] KVM: arm64: Move vGIC v4 handling for WFI out arch callback hook · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-30
[PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-10-27
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-11-28
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-11-29
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Sean Christopherson <seanjc@google.com> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Paolo Bonzini <pbonzini@redhat.com> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
Re: [PATCH v2 11/43] KVM: Don't block+unblock when halt-polling is successful · Maxim Levitsky <hidden> · 2021-12-02
[PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() · Maxim Levitsky <hidden> · 2021-10-27
Re: [PATCH v2 12/43] KVM: x86: Tweak halt emulation helper names to free up kvm_vcpu_halt() · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 13/43] KVM: Rename kvm_vcpu_block() => kvm_vcpu_halt() · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 13/43] KVM: Rename kvm_vcpu_block() => kvm_vcpu_halt() · Anup Patel <anup@brainfault.org> · 2021-10-22
[PATCH v2 14/43] KVM: Split out a kvm_vcpu_block() helper from kvm_vcpu_halt() · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 15/43] KVM: stats: Add stat to detect if vcpu is currently blocking · Sean Christopherson <seanjc@google.com> · 2021-10-09
[PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 16/43] KVM: Don't redo ktime_get() when calculating halt-polling stop/deadline · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 17/43] KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 17/43] KVM: x86: Directly block (instead of "halting") UNINITIALIZED vCPUs · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 18/43] KVM: x86: Invoke kvm_vcpu_block() directly for non-HALTED wait states · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 18/43] KVM: x86: Invoke kvm_vcpu_block() directly for non-HALTED wait states · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 19/43] KVM: Add helpers to wake/query blocking vCPU · Maxim Levitsky <hidden> · 2021-10-27
[PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 20/43] KVM: VMX: Skip Posted Interrupt updates if APICv is hard disabled · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 21/43] KVM: VMX: Clean up PI pre/post-block WARNs · Sean Christopherson <seanjc@google.com> · 2021-10-28
[PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 22/43] KVM: VMX: Drop unnecessary PI logic to handle impossible conditions · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 23/43] KVM: VMX: Use boolean returns for Posted Interrupt "test" helpers · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 23/43] KVM: VMX: Use boolean returns for Posted Interrupt "test" helpers · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 24/43] KVM: VMX: Drop pointless PI.NDST update when blocking · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 25/43] KVM: VMX: Save/restore IRQs (instead of CLI/STI) during PI pre/post block · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 25/43] KVM: VMX: Save/restore IRQs (instead of CLI/STI) during PI pre/post block · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Sean Christopherson <seanjc@google.com> · 2021-10-28
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Maxim Levitsky <hidden> · 2021-10-31
Re: [PATCH v2 26/43] KVM: VMX: Read Posted Interrupt "control" exactly once per loop iteration · Sean Christopherson <seanjc@google.com> · 2021-11-01
[PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Sean Christopherson <seanjc@google.com> · 2021-10-28
Re: [PATCH v2 27/43] KVM: VMX: Move Posted Interrupt ndst computation out of write loop · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Sean Christopherson <seanjc@google.com> · 2021-10-28
Re: [PATCH v2 28/43] KVM: VMX: Remove vCPU from PI wakeup list before updating PID.NV · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 29/43] KVM: VMX: Handle PI wakeup shenanigans during vcpu_put/load · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 29/43] KVM: VMX: Handle PI wakeup shenanigans during vcpu_put/load · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 30/43] KVM: Drop unused kvm_vcpu.pre_pcpu field · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 30/43] KVM: Drop unused kvm_vcpu.pre_pcpu field · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 31/43] KVM: Move x86 VMX's posted interrupt list_head to vcpu_vmx · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 31/43] KVM: Move x86 VMX's posted interrupt list_head to vcpu_vmx · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 32/43] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86 · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 32/43] KVM: VMX: Move preemption timer <=> hrtimer dance to common x86 · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 33/43] KVM: x86: Unexport LAPIC's switch_to_{hv,sw}_timer() helpers · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 33/43] KVM: x86: Unexport LAPIC's switch_to_{hv,sw}_timer() helpers · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 34/43] KVM: x86: Remove defunct pre_block/post_block kvm_x86_ops hooks · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 34/43] KVM: x86: Remove defunct pre_block/post_block kvm_x86_ops hooks · Maxim Levitsky <hidden> · 2021-10-28
[PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Maxim Levitsky <hidden> · 2021-10-28
Re: [PATCH v2 35/43] KVM: SVM: Signal AVIC doorbell iff vCPU is in guest mode · Sean Christopherson <seanjc@google.com> · 2021-10-28
[PATCH v2 36/43] KVM: SVM: Don't bother checking for "running" AVIC when kicking for IPIs · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 36/43] KVM: SVM: Don't bother checking for "running" AVIC when kicking for IPIs · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Sean Christopherson <seanjc@google.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Sean Christopherson <seanjc@google.com> · 2021-10-25
Re: [PATCH v2 37/43] KVM: SVM: Unconditionally mark AVIC as running on vCPU load (with APICv) · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 38/43] KVM: Drop defunct kvm_arch_vcpu_(un)blocking() hooks · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 38/43] KVM: Drop defunct kvm_arch_vcpu_(un)blocking() hooks · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 39/43] KVM: VMX: Don't do full kick when triggering posted interrupt "fails" · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 40/43] KVM: VMX: Wake vCPU when delivering posted IRQ even if vCPU == this vCPU · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 41/43] KVM: VMX: Pass desired vector instead of bool for triggering posted IRQ · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 41/43] KVM: VMX: Pass desired vector instead of bool for triggering posted IRQ · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 42/43] KVM: VMX: Fold fallback path into triggering posted IRQ helper · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 42/43] KVM: VMX: Fold fallback path into triggering posted IRQ helper · Maxim Levitsky <hidden> · 2021-10-31
[PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup · Sean Christopherson <seanjc@google.com> · 2021-10-09
Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 43/43] KVM: VMX: Don't do full kick when handling posted interrupt wakeup · Maxim Levitsky <hidden> · 2021-10-31
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-25
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Paolo Bonzini <pbonzini@redhat.com> · 2021-10-27
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Christian Borntraeger <hidden> · 2021-10-26
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Sean Christopherson <seanjc@google.com> · 2021-10-26
Re: [PATCH v2 00/43] KVM: Halt-polling and x86 APICv overhaul · Christian Borntraeger <hidden> · 2021-10-26

From: Maxim Levitsky <hidden>
Date: 2021-11-29 22:56:14
Also in: kvm, kvm-riscv, kvmarm, linux-arm-kernel, linux-riscv, lkml

On Mon, 2021-11-29 at 18:55 +0100, Paolo Bonzini wrote:

On 11/29/21 18:25, Sean Christopherson wrote:

quoted

If I apply though only the patch series up to this patch, my fedora VM seems
to work fine, but my windows VM still locks up hard when I run 'LatencyTop'
in it, which doesn't happen without this patch.

Buy "run 'LatencyTop' in it", do you mean running something in the Windows guest?
The only search results I can find for LatencyTop are Linux specific.

I think it's LatencyMon, https://www.resplendence.com/latencymon.

Paolo

Yes.

Best regards,
	Maxim Levitsky

`h`	back out one level
`j`	next message in thread
`k`	previous message in thread
`l`	drill in
`Esc`	close help / fold thread tree
`?`	toggle this help