I have an ASUS G750JW laptop (16 GB RAM, comes with 2 1TB HDDs, Intel i7; see specs below) and I recently bought a Samsung 512GB 850 Pro SSD. I put one of the HDDs in the optical bay and I installed the SSD where the HDD originally was (it's in the SATA 3 port).
I installed Linux Mint 17.1 Rebecca on the SSD, have TRIM enabled, it's in AHCI mode, and the laptop specs are really good. But, for some reason the SSD is slower than expected. On linux, when I run sudo hdparm -t /dev/sda, it returns "Timing buffered disk reads: 804 MB in 3.00 seconds = 267.83 MB/sec" when it should be closer to 500 MB/sec. And I feel the system to be slow, given the awesome SDD and laptop specs.
Question:
Why is the SSD so slow?? What is going on? Did I install Linux incorrectly (I secure erased each time I reinstalled Linux though)? Or maybe the SSD (but it's in a SATA port IN the laptop lol how could someone install that wrong)? I already did everything possible (TRIM, AHCI, put /tmp, /var/lock and /var/run in tmpfs) and tests I've ran came back OK, so what is the issue?
Below is inxi -FGx:
System: Host: alborz-G750JW Kernel: 3.13.0-37-generic x86_64 (64 bit, gcc: 4.8.2)
Desktop: Gnome Distro: Linux Mint 17.1 Rebecca
Machine: System: ASUSTeK (portable) product: G750JW version: 1.0
Mobo: ASUSTeK model: G750JW version: 1.0 Bios: American Megatrends version: G750JW.206 date: 04/26/2013
CPU: Quad core Intel Core i7-4700HQ CPU (-HT-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 19156.1
Clock Speeds: 1: 800.00 MHz 2: 800.00 MHz 3: 800.00 MHz 4: 800.00 MHz 5: 800.00 MHz 6: 800.00 MHz 7: 800.00 MHz 8: 2401.00 MHz
Graphics: Card: NVIDIA GK106M [GeForce GTX 765M] bus-ID: 01:00.0 X.Org: 1.15.1 driver: nvidia Resolution: 1600x900@60.1hz
GLX Renderer: GeForce GTX 765M/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 346.22 Direct Rendering: Yes
Audio: Card-1: NVIDIA GK106 HDMI Audio Controller driver: snd_hda_intel bus-ID: 01:00.1
Card-2: Intel 8 Series/C220 Series Chipset High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture ver: k3.13.0-37-generic
Network: Card-1: Broadcom BCM4352 802.11ac Wireless Network Adapter driver: wl bus-ID: 03:00.0
IF: wlan0 state: up mac: 6c:71:d9:36:60:b4
Card-2: Qualcomm Atheros QCA8171 Gigabit Ethernet driver: alx port: d000 bus-ID: 04:00.0
IF: eth0 state: down mac: 74:d0:2b:e9:4c:c8
Drives: HDD Total Size: 2512.5GB (3.8% used) 1: id: /dev/sda model: Samsung_SSD_850 size: 512.1GB
2: id: /dev/sdb model: ST1000LM024_HN size: 1000.2GB 3: id: /dev/sdc model: ST1000LM024_HN size: 1000.2GB
Partition: ID: / size: 202G used: 11G (6%) fs: ext4 ID: /home size: 220G used: 79G (38%) fs: ext4
ID: swap-1 size: 16.00GB used: 0.00GB (0%) fs: swap ID: swap-2 size: 64.00GB used: 0.00GB (0%) fs: swap
RAID: No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors: System Temperatures: cpu: 44.0C mobo: N/A gpu: 0.0:47C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 212 Uptime: 39 min Memory: 1643.2/15966.6MB Runlevel: 2 Gcc sys: 4.8.2 Client: Shell inxi: 1.8.4
I installed Linux Mint 17.1 Rebecca on the SSD, have TRIM enabled, it's in AHCI mode, and the laptop specs are really good. But, for some reason the SSD is slower than expected. On linux, when I run sudo hdparm -t /dev/sda, it returns "Timing buffered disk reads: 804 MB in 3.00 seconds = 267.83 MB/sec" when it should be closer to 500 MB/sec. And I feel the system to be slow, given the awesome SDD and laptop specs.
Question:
Why is the SSD so slow?? What is going on? Did I install Linux incorrectly (I secure erased each time I reinstalled Linux though)? Or maybe the SSD (but it's in a SATA port IN the laptop lol how could someone install that wrong)? I already did everything possible (TRIM, AHCI, put /tmp, /var/lock and /var/run in tmpfs) and tests I've ran came back OK, so what is the issue?
Below is inxi -FGx:
System: Host: alborz-G750JW Kernel: 3.13.0-37-generic x86_64 (64 bit, gcc: 4.8.2)
Desktop: Gnome Distro: Linux Mint 17.1 Rebecca
Machine: System: ASUSTeK (portable) product: G750JW version: 1.0
Mobo: ASUSTeK model: G750JW version: 1.0 Bios: American Megatrends version: G750JW.206 date: 04/26/2013
CPU: Quad core Intel Core i7-4700HQ CPU (-HT-MCP-) cache: 6144 KB flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 19156.1
Clock Speeds: 1: 800.00 MHz 2: 800.00 MHz 3: 800.00 MHz 4: 800.00 MHz 5: 800.00 MHz 6: 800.00 MHz 7: 800.00 MHz 8: 2401.00 MHz
Graphics: Card: NVIDIA GK106M [GeForce GTX 765M] bus-ID: 01:00.0 X.Org: 1.15.1 driver: nvidia Resolution: 1600x900@60.1hz
GLX Renderer: GeForce GTX 765M/PCIe/SSE2 GLX Version: 4.5.0 NVIDIA 346.22 Direct Rendering: Yes
Audio: Card-1: NVIDIA GK106 HDMI Audio Controller driver: snd_hda_intel bus-ID: 01:00.1
Card-2: Intel 8 Series/C220 Series Chipset High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
Sound: Advanced Linux Sound Architecture ver: k3.13.0-37-generic
Network: Card-1: Broadcom BCM4352 802.11ac Wireless Network Adapter driver: wl bus-ID: 03:00.0
IF: wlan0 state: up mac: 6c:71:d9:36:60:b4
Card-2: Qualcomm Atheros QCA8171 Gigabit Ethernet driver: alx port: d000 bus-ID: 04:00.0
IF: eth0 state: down mac: 74:d0:2b:e9:4c:c8
Drives: HDD Total Size: 2512.5GB (3.8% used) 1: id: /dev/sda model: Samsung_SSD_850 size: 512.1GB
2: id: /dev/sdb model: ST1000LM024_HN size: 1000.2GB 3: id: /dev/sdc model: ST1000LM024_HN size: 1000.2GB
Partition: ID: / size: 202G used: 11G (6%) fs: ext4 ID: /home size: 220G used: 79G (38%) fs: ext4
ID: swap-1 size: 16.00GB used: 0.00GB (0%) fs: swap ID: swap-2 size: 64.00GB used: 0.00GB (0%) fs: swap
RAID: No RAID devices detected - /proc/mdstat and md_mod kernel raid module present
Sensors: System Temperatures: cpu: 44.0C mobo: N/A gpu: 0.0:47C
Fan Speeds (in rpm): cpu: N/A
Info: Processes: 212 Uptime: 39 min Memory: 1643.2/15966.6MB Runlevel: 2 Gcc sys: 4.8.2 Client: Shell inxi: 1.8.4
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