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state:open label:"Performance"
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Go team quiet weeks Dec 22–Jan 2: issue tracker responses will be delayed
#76921 ·
aclements
opened
on Dec 19, 2025
1
Issues
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state
:
open
label
:
"Performance"
state:open label:"Performance"
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Open
Closed
crypto/x509: ParsePKCS1PrivateKey slower in than in 1.23
BugReport
Issues describing a possible bug in the Go implementation.
Issues describing a possible bug in the Go implementation.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#77028
In golang/go;
·
hkishn
opened
on Dec 29, 2025
·
Backlog
runtime/secret, runtime: allocations are zeroed twice
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
Implementation
Issues describing a semantics-preserving change to the Go implementation.
Issues describing a semantics-preserving change to the Go implementation.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76788
In golang/go;
·
DanielMorsing
opened
on Dec 11, 2025
·
Backlog
x/net/publicsuffix: unnecessary allocation since v0.47.0
BugReport
Issues describing a possible bug in the Go implementation.
Issues describing a possible bug in the Go implementation.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76766
In golang/go;
·
ainar-g
opened
on Dec 9, 2025
·
Unreleased
cmd/compile: for always negative numbers <code>int(x) < int(y)</code> proves <code>uint(x) < uint(y)</code>
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76722
In golang/go;
·
Jorropo
opened
on Dec 6, 2025
·
Unplanned
cmd/compile: extra allocation when returning a non-pointer value > 128KB
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76703
In golang/go;
·
zigo101
opened
on Dec 5, 2025
·
Unplanned
net/http: <code>remoteEmptyPort</code> could be optimized
FixPending
Issues that have a fix which has not yet been reviewed or submitted.
Issues that have a fix which has not yet been reviewed or submitted.
Implementation
Issues describing a semantics-preserving change to the Go implementation.
Issues describing a semantics-preserving change to the Go implementation.
Performance
Status: Open.
#76651
In golang/go;
·
dxasu
opened
on Dec 2, 2025
·
Backlog
cmd/compile: no BCE due to missing limits when comparing against len with delta=0
BugReport
Issues describing a possible bug in the Go implementation.
Issues describing a possible bug in the Go implementation.
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
help wanted
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
Feature
#76429
In golang/go;
·
fice-t
opened
on Nov 24, 2025
·
Unplanned
cmd/compile: inliner loses optimizations (and has different optimizations) for constant string args
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76372
In golang/go;
·
fice-t
opened
on Nov 20, 2025
·
Unplanned
cmd/compile: extra bounds check when accessing string using index from range over its runes
BugReport
Issues describing a possible bug in the Go implementation.
Issues describing a possible bug in the Go implementation.
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
help wanted
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76354
In golang/go;
·
fice-t
opened
on Nov 19, 2025
·
Unplanned
cmd/compile: prove only notices one of a pair of induction variables (missed optimization)
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76269
In golang/go;
·
dr2chase
opened
on Nov 11, 2025
·
Unplanned
internal/runtime/maps: hash copy of key instead of key itself makes map run slowly
BugReport
Issues describing a possible bug in the Go implementation.
Issues describing a possible bug in the Go implementation.
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76083
In golang/go;
·
spy20051623
opened
on Oct 28, 2025
·
Unplanned
cmd/compile: exploit disjoint live ranges to reduce frame size
compiler/runtime
Issues related to the Go compiler and/or runtime.
Issues related to the Go compiler and/or runtime.
NeedsInvestigation
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Performance
Status: Open.
#76073
In golang/go;
·
adonovan
opened
on Oct 27, 2025
·
Unplanned
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