1. Allocaotrs:
2. Servers:
x86 server: 16 cores, 60 GB ram.
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 52 bits physical, 57 bits virtual
Byte Order: Little Endian
CPU(s): 16
On-line CPU(s) list: 0-15
Vendor ID: GenuineIntel
Model name: INTEL(R) XEON(R) PLATINUM 8581C CPU @ 2.30GHz
CPU family: 6
Model: 207
Thread(s) per core: 2
Core(s) per socket: 8
Socket(s): 1
Stepping: 2
BogoMIPS: 4600.00
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss ht syscall nx pdpe1gb rdtscp lm constant_tsc rep_g
ood nopl xtopology nonstop_tsc cpuid tsc_known_freq pni pclmulqdq monitor ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt aes xsave avx f16c rdra
nd hypervisor lahf_lm abm 3dnowprefetch ssbd ibrs ibpb stibp ibrs_enhanced fsgsbase tsc_adjust bmi1 hle avx2 smep bmi2 erms invpcid rtm avx512f avx512d
q rdseed adx smap avx512ifma clflushopt clwb avx512cd sha_ni avx512bw avx512vl xsaveopt xsavec xgetbv1 xsaves avx_vnni avx512_bf16 wbnoinvd arat avx512
vbmi umip avx512_vbmi2 gfni vaes vpclmulqdq avx512_vnni avx512_bitalg avx512_vpopcntdq la57 rdpid cldemote movdiri movdir64b fsrm md_clear serialize ts
xldtrk amx_bf16 avx512_fp16 amx_tile amx_int8 arch_capabilities
Virtualization features:
Hypervisor vendor: KVM
Virtualization type: full
Caches (sum of all):
L1d: 384 KiB (8 instances)
L1i: 256 KiB (8 instances)
L2: 16 MiB (8 instances)
L3: 260 MiB (1 instance)
NUMA:
NUMA node(s): 1
NUMA node0 CPU(s): 0-15
ARM server: 16 cores, 64 GB ram.
Architecture: aarch64
CPU op-mode(s): 64-bit
Byte Order: Little Endian
CPU(s): 16
On-line CPU(s) list: 0-15
Vendor ID: ARM
Model name: Neoverse-V2
Model: 1
Thread(s) per core: 1
Core(s) per socket: 16
Socket(s): 1
Stepping: r0p1
BogoMIPS: 2000.00
Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm jsc
vt fcma lrcpc dcpop sha3 sm3 sm4 asimddp sha512 sve asimdfhm dit uscat ilrcpc flag
m sb paca pacg dcpodp sve2 sveaes svepmull svebitperm svesha3 svesm4 flagm2 frint
svei8mm svebf16 i8mm bf16 dgh rng bti
Caches (sum of all):
L1d: 1 MiB (16 instances)
L1i: 1 MiB (16 instances)
L2: 32 MiB (16 instances)
L3: 80 MiB (1 instance)
NUMA:
NUMA node(s): 1
NUMA node0 CPU(s): 0-15
3. Thread types:
Event loop thread: AKA FastThreadLocalThread in Netty.Platform thread.
4. Threads count:
32 threads, which equals to 2 × 16 cores, aligned with the default configuration commonly used in production env.
5. Java:
6. JVM args:
-XX:InitialRAMPercentage=40.0 -XX:MaxRAMPercentage=40.0-Dio.netty.leakDetection.level=disabled-dsa -da
7. Data:
SOCKET_PROXY: Generated by WebSocketProxyPattern.java, the data was copied from netty’s AllocationPatternSimulator, which derived from a web socket proxy service.API_GATEWAY: Generated by ApiGatewayPattern.java, which generates sizes based on a log-normal distribution, which is commonly used to model network traffic patterns, the median size ≈ 2 KiB; the mean size ≈ 3.3 KiB; the P95 ≈ 10KiB; the P99 ≈ 20 KiB, the sizes are constrained to be between 8 bytes to 1 MiB.
8. Benchmark code:
9. Code base:
- Netty-4.2.16.Final-SNAPSHOT, which compiled based on ec4efdb.
- Mimalloc-netty-allocator: 1.1.1.Final.
10. Max live buffers per thread:
MAX_LIVE_BUFFERS: [128, 1024, 4096, 8192, 16384, 32768, 65536].- Allocations on platform threads skipped
65536, as the pooled allocator threw OOM when MAX_LIVE_BUFFERS reached 65536 with heap allocations.
11. Switch on read-write:
enableReadWrite: Enables read and write on each buffer to simulate real-world usage.