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Description
The execution time of hello_world degraded by about 13% over the last several month.
Version checked in the uhyve repo:
time: [224.29 ms 225.64 ms 226.60 ms]
Current master version with all features enabled, i.e. fsgsbase, pci, acpi:
time: [253.29 ms 255.99 ms 258.55 ms]
Current master version with pci and acpi enabled:
time: [250.02 ms 252.49 ms 254.95 ms]
Current master version with pci enabled:
time: [250.88 ms 254.38 ms 257.67 ms]
Current master version with acpi enabled:
time: [252.18 ms 254.48 ms 256.79 ms]
It seems to be that regardless of which feature is enabled, execution time is slower than it used to be and I am not sure why it is. The version checked in the uhyve repo seems to have at least pci enabled:
ᨂ target/release/uhyve -v benches_data/hello_world_old
[0][INFO] Welcome to HermitCore-rs 0.3.37
[0][INFO] Kernel starts at 0x400000
[0][INFO] BSS starts at 0x5ca000
[0][INFO] TLS starts at 0x553dd0 (size 184 Bytes)
[0][INFO] Total memory size: 64 MB
[0][INFO] Kernel region: [0x400000 - 0x600000]
[0][INFO] A pure Rust application is running on top of HermitCore!
[0][INFO] Heap: size 50 MB, start address 0x600000
[0][INFO] Heap is located at 0x600000 -- 0x3800000 (0 Bytes unmapped)
[0][INFO]
[0][INFO] ===================== PHYSICAL MEMORY FREE LIST ======================
[0][INFO] 0x00000003800000 - 0x00000004000000
[0][INFO] ======================================================================
[0][INFO]
[0][INFO]
[0][INFO] ================== KERNEL VIRTUAL MEMORY FREE LIST ===================
[0][INFO] 0x00000003800000 - 0x00800000000000
[0][INFO] ======================================================================
[0][INFO]
[0][INFO]
[0][INFO] ========================== CPU INFORMATION ===========================
[0][INFO] Model: uhyve - unikernel hypervisor
[0][INFO] Frequency: 3693 MHz (from Hypervisor)
[0][INFO] SpeedStep Technology: Not Available
[0][INFO] Features: MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AESNI RDRAND FMA MOVBE MCE FXSR XSAVE RDTSCP CLFLUSH TSC-DEADLINE X2APIC HYPERVISOR AVX2 BMI1 BMI2 FSGSBASE
[0][INFO] Physical Address Width: 48 bits
[0][INFO] Linear Address Width: 48 bits
[0][INFO] Supports 1GiB Pages: Yes
[0][INFO] ======================================================================
[0][INFO]
[0][INFO] HermitCore-rs booted on 2020-12-24 at 11:43:26
[0][INFO]
[0][INFO] ======================== PCI BUS INFORMATION =========================
[0][INFO] 00:00 Ethernet controller [0200]: Red Hat, Inc. Virtio network device [1AF4:1000], MemoryBar: 0xc000 (size 0x10)
[0][INFO] ======================================================================
[0][INFO]
[0][INFO] IOAPIC v0 has 1 entries
[0][INFO] HermitCore is running on uhyve!
[0][INFO] Found virtio device with device id 0x1000
[0][WARN] Legacy Virtio devices are not supported, skipping!
[INFO] Spawn network thread with id 2
[WARN] Ethernet interface not available
Hello World!
[0][INFO] Number of interrupts
[0][INFO] [0][7]: 3
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